+
- - Picture by Azad Zahoory -
-var name = "Brandon";| - B - | +| B | r | a | n | d | o | n | +| ---- | ---- | ---- | ---- | ---- | ---- | ---- | +| 0 | 1 | 2 | 3 | 4 | 5 | 6 | -- r - | - -- a - | - -- n - | - -- d - | - -- o - | - -- n - | -
| - | - -- 1 - | - -- 2 - | - -- 3 - | - -- 4 - | - -- 5 - | - -- 6 - | -
var firstInitial = "Brandon"[0];"B".
-
-#### Some useful methods for strings {#some-useful-methods-for-strings}
-
-##### String.prototype.indexOf(); {#string.prototype.indexof();}
+##### `String.prototype.indexOf`
This can be used to find the index of any character(s) in a string. I primarily use it for when I need to check if something exists in a string. Do I have a ‘z’ in my name?
-"Brandon".indexOf('z');-1. How about a ‘d’?
+Nope, so Javascript will return a `-1`. How about a ‘d’?
-"Brandon".indexOf('d');5 which is the index of the letter ‘d’.
+Yes, Javascript will return `5` which is the index of the letter `‘d’`.
-##### String.prototype.replace(); {#string.prototype.replace();}
+##### `String.prototype.replace`
-The replace method can replace any character(s) with other character(s). For more complex replacing, look into [Regular Expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions) and how you can use them in .replace(). Replace the first ‘n’ in my name with an ‘m’.
+The replace method can replace any character(s) with other character(s). For more complex replacing, look into [Regular Expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions) and how you can use them in `.replace()`. Replace the first `‘n’` in my name with an `‘m’`.
-
+```javascript
var modifiedName = "Brandon".replace('n', 'm');
-
console.log(modifiedName);
-"Bramdon".
+Logs `"Bramdon"`.
-##### String.prototype.toUpperCase(); {#string.prototype.touppercase();}
+##### `String.prototype.toUpperCase`
This method returns the string with all the lowercase characters converted to uppercase and can be useful for when you’re checking user input and you don’t want to worry about different cases.
-"Brandon".toUpperCase();"BRANDON".
+Returns `"BRANDON"`.
-##### String.prototype.toLowerCase(); {#string.prototype.tolowercase();}
+##### `String.prototype.toLowerCase()`
Same as above but instead of converting lowercase to uppercase, it converts uppercase to lowercase.
-"Brandon".toLowerCase();"brandon".
+Returns `"brandon"`.
-#### A couple useful escape secquences {#a-couple-useful-escape-secquences}
+#### A couple useful escape secquences
- * n for newline.
- * t for tab character.
+ * `\n` for newline.
+ * `\t` for tab character.
-You can also use escape sequnces if you want to add “” or ‘’ to your strings.
-
-
-var greeting = "Hello "Brandon"";
+You can also use escape sequnces if you want to add `“”` or `‘’` to your strings.
+```javascript
+var greeting = "Hello \"Brandon\"";
console.log(greeting);
-"Hello "Brandon"".
+Returns `"Hello "Brandon""`.
-### Number {#number}
+### Number
-Any number between -(253 – 1) and (253 – 1).
+Any number between -(2^53 – 1) and (2^53 – 1).
-#### Number Methods {#number-methods}
+#### Number Methods
Number methods are useful when trying to represent complex numbers.
-##### Number.prototype.toExponential(); {#number.prototype.toexponential();}
+##### `Number.prototype.toExponential()`
Returns a string representing a number in exponential notation.
-77.1234.toExponential(2);"7.71e+1".
+Returns `"7.71e+1"`.
-##### Number.prototype.toFixed(); {#number.prototype.tofixed();}
+##### `Number.prototype.toFixed()`
Returns a string representing a number fixed to x amount of decimal places.
-12345.6789.toFixed(1);"12345.7".
+Returns `"12345.7"`.
-##### Number.prototype.toPrecision(); {#number.prototype.toprecision();}
+##### `Number.prototype.toPrecision();`
Returns a string representing a number using x amount of significant figures.
-5.123456.toPrecision(2);"5.1".
+Returns `"5.1"`.
-#### Math properties/methods {#math-properties/methods}
+#### Math properties/methods
In Javascript there is a Math object which contains many properties and methods which are useful for mathmatical calculations.
-##### Return Euler’s constant {#return-euler's-constant}
+##### Return Euler’s constant
-Math.E which returns ~2.718.
+`Math.E` which returns ~2.718.
-##### Return the natural log of x {#return-the-natural-log-of-x}
+##### Return the natural log of x
-Math.log(x)
+```javascript
+Math.log(x)
+```
-##### Rise x to the y power {#rise-x-to-the-y-power}
+##### Rise x to the y power
-Math.pow(x,y)
+```javascript
+Math.pow(x,y)
+```
-##### Return a psuedo random number [0,1) {#return-a-psuedo-random-number-[0,1)}
+##### Return a psuedo random number \[0,1\)
-Math.random()
+```javascript
+Math.random()
+```
-##### Round x to the nearest integer {#round-x-to-the-nearest-integer}
+##### Round x to the nearest integer
-Math.round(x)
+```javascript
+Math.round(x)
+```
-### Boolean {#boolean}
+### Boolean
-Booleans are either true or false and are typically used in conditional statements. You can either create them explicitly
-
-var alive = true;
+```javascript
var dead = false;
var isAlive = !dead;
-true.
+isAlive equals `true`.
-### Array {#array}
+### Array
An array is a list of items. In Javascript these items can be any data type, even arrays themselves.
-var mixedBag = ['sword', 24, true, [Math.PI, Math.E], 'shield'];['sword', 'shield', 'helmet'][1];'shield'. to figure out how many items are in the array.
+Returns `'shield'`. In order to figure out how many items are in the array:
-
+```javascript
var inventory = ['boots', 'gloves', 'pants', 'shirt'];
var inventoryAmt = inventory.length;
-4 since there are 4 items in inventory.
+inventoryAmt is `4` since there are 4 items in inventory.
-#### Array Methods {#array-methods}
+#### Array Methods
-##### Array.prototype.push(); {#array.prototype.push();}
+##### `Array.prototype.push()`
Adds whatever is inside the parenthesis to the end of the array. Great for adding items to a list. For example, test scores.
-[100,92,95].push(80);[100,92,95,80].
+Returns `[100,92,95,80]`.
-##### Array.prototype.reverse(); {#array.prototype.reverse();}
+##### `Array.prototype.reverse()`
Reverses the order of all the items in the array.
-[1,2,3].reverse();[3,2,1].
+Returns `[3,2,1]`.
-##### Array.prototype.concat(); {#array.prototype.concat();}
+##### `Array.prototype.concat()`
-Combines two arrays, putting the items from the array in the parenthesis to the end of the main array. This method is a lot faster than grabbing each item by their index and adding them using the .push() method.
+Combines two arrays, putting the items from the array in the parenthesis to the end of the main array. This method is a lot faster than grabbing each item by their index and adding them using the `.push()` method.
-['a','b','c'].concat([1,2,3]);['a','b','c',1,2,3].
+Returns `['a','b','c',1,2,3]`.
-##### Array.prototype.join(); {#array.prototype.join();}
+##### `Array.prototype.join()`
Converts the array into a string, with each item seperated by whatever is in the parenthesis. Useful for telling the user the items in their inventory, for example.
-
+```javascript
var inventory = ['books','apples','pencils'];
console.log("You have " + inventory.join(", ") + " in your inventory.");
-"You have books, apples, pencils in your inventory."
+Logs `"You have books, apples, pencils in your inventory."`
-##### Array.prototype.indexOf(); {#array.prototype.indexof();}
+##### `Array.prototype.indexOf()`
Similar to String.prototype.indexOf(), it returns the index of the item inside the parenthesis.
-['chicken','pizza','tacos'].indexOf('tacos');2.
+Returns `2`.
-### Objects {#objects}
+### Objects
Objects are like arrays, however they’re easier for establishing the relationship between properties and their values. You can store any data type as a property of an object.
-
+```javascript
var player = {};
player.name = "Brandon";
player.health = Number.POSITIVE_INFINITY;
console.log(player.name + " has " + player.health + " health.");
-"Brandon has Infinity health" Yup that sounds about right.
+Logs `"Brandon has Infinity health"`. Yup that sounds about right.
-### Conclusion {#conclusion}
+### Conclusion
-All of the different data types in Javascript are tools for you to get the job done. When assigning a variable, think to yourself which tool you should use. I had fun doing this lecture. We finished earlier than expected, due to my extra preparations. (Still shuddering over my unpreparedness from last week). We had finished so early in fact, that I went ahead and started teaching next week’s material. Do not worry though, my lovely reader’s only get the most structured of lesson materials. So you’ll have to wait until next week to hear more. 🙂
\ No newline at end of file
+All of the different data types in Javascript are tools for you to get the job done. When assigning a variable, think to yourself which tool you should use. I had fun doing this lecture. We finished earlier than expected, due to my extra preparations. (Still shuddering over my unpreparedness from last week). We had finished so early in fact, that I went ahead and started teaching next week's material. Do not worry though, my lovely readers only get the most structured of lesson materials. So you'll have to wait until next week to hear more. 🙂
\ No newline at end of file
diff --git a/content/blog/2015-10-25-functions.md b/content/blog/2015-10-25-functions.md
index ef9934a..ae89eab 100644
--- a/content/blog/2015-10-25-functions.md
+++ b/content/blog/2015-10-25-functions.md
@@ -17,9 +17,7 @@ tags: ["Web", "JS"]
---
Ever had a snippet of code that appears multiple times in different places in your program? Whenever you had to change that snippet, you end up playing this game of search and replace. Functions can help. They exist to abstract your code, making it not only easier to change that little snippet, but to read and debug your code as well.
-
-
-### How to create/execute a function {#how-to-create/execute-a-function}
+### How to create/execute a function
To make a function
@@ -35,7 +33,7 @@ To call the above function to execute
doSomething();
```
-### Arguments {#arguments}
+### Arguments
You can also add in arguments (parameters that go inside the paraenthesis next to the word function) for the functions to use.
@@ -51,13 +49,13 @@ And when you use the `return` keyword, like the function above. You can store th
var total = add(1, 3);
```
-total here will equal `4`
+`total` here will equal `4`
-### Scope {#scope}
+### Scope
Functions create their own scope, which means that variables created inside the function will only be able available within that function.
-The snippet below will output an error like total is not defined
+The snippet below will output an error like `total is not defined`.
```javascript
var add = function(number1, number2) {
@@ -80,7 +78,7 @@ Below is a correct example of the concept
It’s also important to note that functions can use variables outside of it; granted it resides in the same scope.
-Here is an example of a variable that doesn’t reside in the same scope as the function. (The below code will fail)
+Here is an example of a variable that doesn't reside in the same scope as the function. (The below code will fail)
```javascript
var something = function() {
@@ -104,8 +102,8 @@ Below, is an example of where the variable does reside in the same scope as the
var sum = addX(6);
```
-sum here will equal 11
+`sum` here will equal `11`
-### Conclusion {#conclusion}
+### Conclusion
As long as you name them appropriately, functions are useful for abstracting your code, making them easier to understand. This concludes another lecture made for the members over at Math I/O. Until next week 🙂
\ No newline at end of file
diff --git a/content/blog/2015-11-14-service-workers.md b/content/blog/2015-11-14-service-workers.md
index 23e296e..d1ad781 100644
--- a/content/blog/2015-11-14-service-workers.md
+++ b/content/blog/2015-11-14-service-workers.md
@@ -62,7 +62,7 @@ var offlineFundamentals = [
```
-Since cache.addAll() hasn’t been implemented yet in any of the browsers, and the polyfill implementation didn’t work for my needs. I pieced together my own.
+Since `cache.addAll()` hasn’t been implemented yet in any of the browsers, and the polyfill implementation didn’t work for my needs. I pieced together my own.
```javascript
var updateStaticCache = function() {
@@ -85,8 +85,8 @@ var updateStaticCache = function() {
Let’s go through this chunk of code.
- 1. Open the cache called 'v2.0.24:fundamentals'
- 2. Go through all of the offlineFundamental‘s URLs
+ 1. Open the cache called `'v2.0.24:fundamentals'`
+ 2. Go through all of the `offlineFundamental`‘s URLs
* Does the file I ask for come from the same domain as my site?
* No. Then, make the request ‘no-cors’ (I had difficulty getting my asset files in cors mode. If the cors headers are included in the response, then you can take out this line)
* Fetch the file from the network and then cache it.
@@ -140,7 +140,7 @@ self.addEventListener("activate", function(event) {
The cool thing about service worker’s is that it can handle file requests. We could cache all files requested for offline use, and if a fetch for a resource failed, then the service worker can look for it in the cache or provide an alternative. This is a large section, so I’m going to attempt to break it down as much as I can.
-## Limit the cache {#limit-the-cache}
+## Limit the cache
If the visitor started browsing all of the pages on my site, his or her cache would start to get bloated with files. To not burden my visitors, I decided to only keep the latest 25 pages and latest 10 images in the cache.
@@ -159,7 +159,7 @@ We’ll call it later in the code.
## Fetch from network and cache
-Every time I fetch a file from the network I throw it into a specific cache container. 'pages' for HTML files, 'images' for CSS files, and 'assets' for any other file. This is so I can handle the cache limiting above easier. Defined within the `fetch` event.
+Every time I fetch a file from the network I throw it into a specific cache container: `'pages'` for HTML files, `'images'` for CSS files, and `'assets'` for any other file. This is so I can handle the cache limiting above easier. Defined within the `fetch` event.
```javascript
var fetchFromNetwork = function(response) {
@@ -371,4 +371,4 @@ self.addEventListener("fetch", function(event) {
self.addEventListener("activate", function(event) {
event.waitUntil(clearOldCaches())
});
-```
\ No newline at end of file
+```
diff --git a/content/blog/2015-12-22-playing-with-qr-codes.md b/content/blog/2015-12-22-playing-with-qr-codes.md
index bdd4e6d..f75beca 100644
--- a/content/blog/2015-12-22-playing-with-qr-codes.md
+++ b/content/blog/2015-12-22-playing-with-qr-codes.md
@@ -18,26 +18,21 @@ bridgy_syndication:
https://twitter.com/B_RozekJournal/status/790337750280970241
---
-Looking at Aaron Parecki’s [“Fun with QR Codes”](https://aaronparecki.com/articles/2015/10/05/1/fun-with-qr-codes) inspired me to play with QR Codes myself. Using the tool [QArt Coder](http://research.swtch.com/qr/draw) made by [Russ Cox](https://plus.google.com/116810148281701144465), I made a QR Code with my face in it!
+Looking at Aaron Parecki's [“Fun with QR Codes”](https://aaronparecki.com/articles/2015/10/05/1/fun-with-qr-codes) inspired me to play with QR Codes myself. Using the tool [QArt Coder](http://research.swtch.com/qr/draw) made by [Russ Cox](https://plus.google.com/116810148281701144465), I made a QR Code with my face in it!
-
+
-
### Why QR Codes?
-QR Codes aren’t prevalent in the United States of America. In fact, they’re often viewed by technologists as a [joke](http://picturesofpeoplescanningqrcodes.tumblr.com/). But as [Christina Xu](http://www.christinaxu.org/) points out on her Medium post [“Pictures of Chinese People Scanning QR Codes”](https://medium.com/chrysaora-weekly/pictures-of-chinese-people-scanning-qr-codes-a564047ec58f), it’s not a joke everywhere. In fact, many people actually depend on this humble little QR code to get by in their day. Another story, my family and I go out to eat sometimes. Occasionally, we’ll knock into a Heinz Ketchup bottle.
+QR Codes aren't prevalent in the United States of America. In fact, they're often viewed by technologists as a [joke](http://picturesofpeoplescanningqrcodes.tumblr.com/). But as [Christina Xu](http://www.christinaxu.org/) points out on her Medium post [“Pictures of Chinese People Scanning QR Codes”](https://medium.com/chrysaora-weekly/pictures-of-chinese-people-scanning-qr-codes-a564047ec58f), it's not a joke everywhere. In fact, many people actually depend on this humble little QR code to get by in their day. Another story, my family and I go out to eat sometimes. Occasionally, we'll knock into a Heinz Ketchup bottle.
-
+
- - Picture by Azad Zahoory -
-
+```javascript
/*
representative-h-card - v0.1.0
Copyright (c) 2015 Brandon Rozek
@@ -60,7 +60,7 @@ var representativeHCard = function(hCards, url) {
hCard.items = [hCards.items[0]];
return hCard
} else {
- for (var i = 0; i < hCards.items.length; i++) {
+ for (var i = 0; i < hCards.items.length; i++) {
if (urlsMatchURL(hCards.items[i], url) && (uidsMatchURL(hCards.items[i], url) || relMeMatchURL(hCards, url))) {
hCard = hCards;
hCard.items = [hCards.items[i]];
@@ -75,7 +75,7 @@ var representativeHCard = function(hCards, url) {
var urlsMatchURL = function(hCard, url) {
var urls = hCard.properties.url;
if (typeof(urls) == "object") {
- for (var i = 0; i < urls.length; i++) {
+ for (var i = 0; i < urls.length; i++) {
if (new URL(urls[i]).toString() == new URL(url).toString()) {
return true;
}
@@ -86,7 +86,7 @@ var urlsMatchURL = function(hCard, url) {
var uidsMatchURL = function(hCard, url) {
var uids = hCard.properties.uid;
if (typeof(uids) == "object") {
- for (var i = 0; i < uids.length; i++) {
+ for (var i = 0; i < uids.length; i++) {
if (new URL(uids[i]).toString() == new URL(url).toString()) {
return true;
}
@@ -97,7 +97,7 @@ var uidsMatchURL = function(hCard, url) {
var relMeMatchURL = function(microformats, url) {
var me = microformats.rels.me;
if (typeof(me) == "object") {
- for (var i = 0; i < me.length; i++) {
+ for (var i = 0; i < me.length; i++) {
if (new URL(me[i]).toString() == new URL(url).toString()) {
return true;
}
@@ -105,9 +105,9 @@ var relMeMatchURL = function(microformats, url) {
}
return false;
}
-
+```javascript
/*
vCard-from-h-card - v0.1.0
Copyright (c) 2015 Brandon Rozek
@@ -180,7 +180,7 @@ var makeVCard = function(hCard) {
//Add IMPP (Instant Messaging and Presence Protocol)
if (typeof(impp) == "object") {
impp.removeEmptyStrings();
- for (var i = 0; i < impp.length; i++) {
+ for (var i = 0; i < impp.length; i++) {
vCard += "IMPP;PREF=" + (i + 1) + ": " + impp[i] + "n";
}
}
@@ -189,7 +189,7 @@ var makeVCard = function(hCard) {
var email = hCard.items[0].properties.email;
if (typeof(email) == "object") {
email.removeEmptyStrings();
- for (var i = 0; i < email.length; i++) {
+ for (var i = 0; i < email.length; i++) {
try {
vCard += "EMAIL: " + new URL(email[i]).pathname + "n";
} catch (e) {
@@ -238,10 +238,9 @@ var makeVCard = function(hCard) {
Array.prototype.removeEmptyStrings = function() {
return this.filter(function(i) { return i !== "" })
}
+```
-
+```javascript
/*
show-vCard - v0.1.0
Copyright (c) 2015 Brandon Rozek
@@ -257,8 +256,8 @@ The link is actually a [data uri](https://developer.mozilla.org/en-US/docs/Web/H
*/
var filterMicroformats = function(items, filter) {
var newItems = [];
- for (var i = 0; i < items.items.length; i++) {
- for (var k = 0; k < items.items[i].type.length; k++) {
+ for (var i = 0; i < items.items.length; i++) {
+ for (var k = 0; k < items.items[i].type.length; k++) {
if (filter.indexOf(items.items[i].type[k]) != -1) {
newItems.push(items.items[i]);
}
@@ -306,16 +305,16 @@ var render = function() {
document.addEventListener("DOMContentLoaded", function() {
render();
});
-Math.random() between 1 and 1000 inclusive and calls the function 1,000,000 times. Storing it’s results in a file
+The website works by producing a random number using `Math.random()` between 1 and 1000 inclusive and calls the function 1,000,000 times. Storing its results in a file
This website produces a file with all the numbers separated by a comma. We want these commas to be replaced by newlines. To do so, we can run a simple command in the terminal
@@ -45,13 +45,13 @@ Here are a copy of my files for [Firefox](https://brandonrozek.com/wp-content/up
## Check Conditions
-Since we’re interested in if the random values occur uniformly, we need to perform a Chi-Square test for Goodness of Fit. With every test comes some assumptions
+Since we're interested in if the random values occur uniformly, we need to perform a Chi-Square test for Goodness of Fit. With every test comes some assumptions
-Counted Data Condition: The data can be converted from quantatative to count data.
+**Counted Data Condition:** The data can be converted from quantatative to count data.
-Independence Assumption: One random value does not affect another.
+**Independence Assumption:** One random value does not affect another.
-Expected Cell Frequency Condition: The expected counts are going to be 10000
+**Expected Cell Frequency Condition:** The expected counts are going to be 10000
Since all of the conditions are met, we can use the Chi-square test of Goodness of Fit
diff --git a/content/blog/2017-05-24-viewing-java-applets.md b/content/blog/2017-05-24-viewing-java-applets.md
index a370290..c41560a 100644
--- a/content/blog/2017-05-24-viewing-java-applets.md
+++ b/content/blog/2017-05-24-viewing-java-applets.md
@@ -18,13 +18,14 @@ tags: ["Java"]
---
When you use an IDE there are many things you can take for granted. A section of an intro level computer science course at my university uses [JGrasp](http://www.jgrasp.org/) to build Java Applets.
-Following around using a normal text editor, I found that I couldn’t just compile and run the code like I have with my java programs in the past. To be able to help around and assist in the course, I need to be able to build and run these applications. The rest of this article describes the process I underwent to be able to use my existing setup to write and build java applets. Of course you can always install JGrasp and have that all built in, but it’s always nice to not have to change your workflow.
-
-
+Following around using a normal text editor, I found that I couldn't just compile and run the code like I have with my java programs in the past. To be able to help around and assist in the course, I need to be able to build and run these applications. The rest of this article describes the process I underwent to be able to use my existing setup to write and build java applets. Of course you can always install JGrasp and have that all built in, but it's always nice to not have to change your workflow.
When I tried following along, I would receive the following error
+```
Main method not found in class HelloWorld, please define main method as...
+```
+
Which makes sense since I have never defined a main method inside my source code. So how do I go about doing this?
@@ -32,20 +33,20 @@ Which makes sense since I have never defined a main method inside my source code
Java Applets are meant to run on web pages, because of this one needs an html file to host the applet. The following code gives you the bare minimum for setting up the html file. I called it `HelloWorld.html`.
-
-<html>
- <head><title>Applet Container<title>
- <body>
- <applet code='HelloWorld.class' width=400 height=400></applet>
- </body>
-</html>
-
+```java
import javax.swing.JApplet;
import java.awt.Graphics;
@@ -54,18 +55,22 @@ public class HelloWorld extends JApplet {
g.drawString("Hello World", 30, 30);
}
}
-javac HelloWorld.javaappletviewer HelloWorld.html
+```java
JButton stopBtn = new JButton("Stop");
-
You can also add images inside a button. To do that you need to get the image and make it into an icon. The following code grabs the image file “smallpanda.jpg” from the current working directory.
-
+```java
Image img = this.getImage(this.getCodeBase(), "smallpanda.jpg");
ImageIcon imgIcon = new ImageIcon(img);
JButton feedBtn = new JButton("Feed", imgIcon);
-
+```java
feedBtn.setHorizontalTextPosition(JButton.CENTER);
feedBtn.setVerticalTextPosition(JButton.BOTTOM);
-
+```java
this.add(stopBtn);
this.add(feedBtn);
-
### Labels and Textfields
One of the most common forms of input is a text field, usually distinguished with a label. Those components are called JTextField and JLabel respectively. The constructor for JTextArea can take just the width of the text field, or another common use is to have already inputed text and its width.
-
+```java
JLabel nameLabel = new JLabel("Enter in your name: ");
// Create an input and set the width to be 10px wide
@@ -67,28 +69,30 @@ One of the most common forms of input is a text field, usually distinguished wit
this.add(nameLabel);
this.add(nameInput);
-
### Checkboxes
Checkboxes are commonly used when giving the possibility for multiple answers. Such as, check all of the foods that you like.
-
+```java
JCheckBox pizza = new JCheckBox("Pizza");
JCheckBox noodles = new JCheckBox("Noodles");
JCheckBox rice = new JCheckBox("Rice");
this.add(pizza);
this.add(noodles);
this.add(rice);
-
+
-You can even replace the default look of the checkbox with an image. To do this, you need to make image icons for both when it’s checked and when it’s unchecked.
-
+You can even replace the default look of the checkbox with an image. To do this, you need to make image icons for both when it's checked and when it's unchecked.
+
+```java
Image checkedImage = this.getImage(this.getCodeBase(), "checked.png");
Image uncheckedImage = this.getImage(this.getCodeBase(), "unchecked.png");
@@ -99,32 +103,33 @@ JCheckBox checkbox = new JCheckBox("Check Me", uncheckedIcon);
checkbox.setSelectedIcon(checkedIcon);
this.add(checkbox);
-
-
### Text Areas
-Text Areas are different from text fields in which it is made to be able to hold multiple lines of text. It’s called JTextArea and its construction takes a width and height as it’s arguments.
+Text Areas are different from text fields in which it is made to be able to hold multiple lines of text. It's called JTextArea and its construction takes a width and height as it's arguments.
-
+```java
JTextArea textarea = new JTextArea(10, 10);
-
+```java
JScrollPane scrollPane = new JScrollPane(textarea);
-
+
### Radio Buttons
Radio buttons are used for when you only want one out of many different options to be selected. For this, one needs to define a button group that houses the radio buttons for the user to choose from. This can be achieved with ButtonGroup and JRadioButton respectively.
-
+```java
// Make the radio buttons
JRadioButton radio1 = new JRadioButton("Pies");
JRadioButton radio2 = new JRadioButton("Cakes");
@@ -140,55 +145,56 @@ desserts.add(radio3);
this.add(radio1);
this.add(radio2);
this.add(radio3);
-
### JList
-To display a list of items that are clickable by the user, you can use a `JList`. JLists require a model that stores the list implementation, we’ll use `DefaultListModel` to achieve this purpose.
+To display a list of items that are clickable by the user, you can use a `JList`. JLists require a model that stores the list implementation, we'll use `DefaultListModel` to achieve this purpose.
-
+```java
DefaultListModel model = new DefaultListModel();
JList list = new JList(model);
-
+```java
JScollPane sp = new JScrollPane(list);
-
+```java
list.setVisibleRowCount(3);
-
+```java
model.addElement("Apples")
model.addElement("Cherries");
model.addElement("Bananas");
// Adds 'Oranges' to the top
model.add(0, "Oranges");
-
+```java
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
this.add(sp);
-
+
### JComboBox
To create a dropdown list of different options, consider using a JComboBox.
-
+```java
JComboBox cb = new JComboBox();
cb.addItem("Select Food Option");
cb.addItem("Pizza");
@@ -197,6 +203,6 @@ cb.addItem("Hot Dog");
cb.addItem("Steak");
// Add it to the screen
this.add(cb);
-
\ No newline at end of file
+
diff --git a/content/blog/2017-06-05-using-system-themes-java-swing.md b/content/blog/2017-06-05-using-system-themes-java-swing.md
index 37c0409..b46d0e6 100644
--- a/content/blog/2017-06-05-using-system-themes-java-swing.md
+++ b/content/blog/2017-06-05-using-system-themes-java-swing.md
@@ -24,12 +24,12 @@ The default theme for Java Swing components is a cross-platform theme called
In the init method of your java application, place the following code.
-
+```java
try {
UIManager.setLookAndFeel(UIManager
.getSystemLookAndFeelClassName());
} catch(Exception e) {}
-dresses_data['SleeveLength'].value_counts()
-from hunspell import HunSpell
-spellchecker = HunSpell('/usr/share/hunspell/en_US.dic', '/usr/share/hunspell/en_US.aff')
-def correct_word(checker, word, add_to_dict=[]):
+```python
+def correct_word(checker, word, add_to_dict=[]):
"Takes in a hunspell object and a word and corrects the word if needed"
# Add custom words to the dictionary
for w in add_to_dict:
checker.add(w)
corrected = ""
- # Check to see if it's a string
+ # Check to see if it's a string
if isinstance(word, str):
# Check the spelling
ok = checker.spell(word)
@@ -89,15 +93,17 @@ I modified his `correct_words` function so that it only corrects one word and so
## Not a string. Return original
corrected = word
return corrected
-dresses_data['SleeveLength'] = dresses_data['SleeveLength'].apply(
- lambda x: correct_word(spellchecker, x))
-def list_word_suggestions(checker, words, echo = True, add_to_dict=[]):
+```python
+def list_word_suggestions(checker, words, echo = True, add_to_dict=[]):
"Takes in a list of words and returns a dictionary with mispellt words as keys and suggestions as a list. Also prints it out"
# add custom words to the dictionary
for w in add_to_dict:
@@ -141,34 +148,37 @@ Keeping that in mind, I modified the function again to take in a list of the dat
elif echo:
print(word + ": " + "[", ", ".join(repr(i) for i in suggestions[word]), "]")
return suggestions
-s = list_word_suggestions(spellchecker, dresses_data['SleeveLength'].values.tolist())
-sleevless: [ 'sleeveless', 'sleepless', 'sleeves', 'sleekness', 'sleeve', 'lossless' ]
-threequarter: [ 'three quarter', 'three-quarter', 'forequarter' ]
-halfsleeve: ['half sleeve', 'half-sleeve', 'sleeveless' ]
+```
+sleevless: [ 'sleeveless', 'sleepless', 'sleeves', 'sleekness', 'sleeve', 'lossless' ]
+threequarter: [ 'three quarter', 'three-quarter', 'forequarter' ]
+halfsleeve: ['half sleeve', 'half-sleeve', 'sleeveless' ]
turndowncollor: No suggestions
-threequater: [ 'forequarter' ]
-capsleeves: [ 'cap sleeves', 'cap-sleeves', 'capsules' ]
-sleeevless: [ 'sleeveless', 'sleepless', 'sleeves', 'sleekness', 'sleeve' ]
-urndowncollor: [ 'landownership' ]
-thressqatar: [ 'throatiness' ]
-sleveless: [ 'sleeveless', 'levelness', 'valveless', 'loveless', 'sleepless' ]
-dresses_data['SleeveLength'].replace('sleevless', 'sleeveless', inplace = True)
-
+
Same with the female life expectancy distribution
@@ -99,15 +98,16 @@ Same with the female life expectancy distribution
hist(femaleExpectancy, main = "Female Life Expectancy", xlab = "Age")
```
-
+
-Looking at the boxplot, we can see that the IQR of the female life expectancy is higher than the one of the males. The hypothesis test will show us if this is of significant difference. On the male’s side there are two outliers. This violates the Nearly Normal Condition so we must proceed with caution in our test.
+
+Looking at the boxplot, we can see that the IQR of the female life expectancy is higher than the one of the males. The hypothesis test will show us if this is of significant difference. On the male's side there are two outliers. This violates the Nearly Normal Condition so we must proceed with caution in our test.
```R
boxplot(maleExpectancy, femaleExpectancy, names = c("Male Life Expectancy", "Female Life Expectancy"), ylab = "Age")
```
-
+
Since the nearly normal condition was not met, we do not meet the assumptions necessary to perform a t-test. However, since the condition was violated by an outlier, let us perform a t-test with the outlier and without the outlier and compare the results.
@@ -175,7 +175,7 @@ Looking at the boxplot, there are no more outliers present
boxplot(maleExpectancy2, ylab = "Age", main = "Male Life Expectancy w/o Outliers")
```
-
+
The histogram still appears to be unimodal and symmetric
@@ -183,7 +183,7 @@ The histogram still appears to be unimodal and symmetric
hist(maleExpectancy2, xlab = "Age", main = "Male Life Expectancy w/o Outliers")
```
-
+
Without the outliers present, the nearly normal condition is now met. We can perform the t-test.
@@ -229,4 +229,4 @@ t.test(femaleExpectancy, maleExpectancy2)
## Conclusion
-By running the tests and checking the effects of the outliers in the dataset and seeing that the results did not change, we can safely conclude that our interpretations stated before are correct. There is enough evidence to suggest that females in the United States live on average longer than males. We are 95% confident that they live longer than males by 5 to 6 years.
\ No newline at end of file
+By running the tests and checking the effects of the outliers in the dataset and seeing that the results did not change, we can safely conclude that our interpretations stated before are correct. There is enough evidence to suggest that females in the United States live on average longer than males. We are 95% confident that they live longer than males by 5 to 6 years.
diff --git a/content/blog/rsynckey.md b/content/blog/rsynckey.md
index 0107003..965ec5c 100644
--- a/content/blog/rsynckey.md
+++ b/content/blog/rsynckey.md
@@ -22,7 +22,7 @@ Quick option definitions (from man page)
| Option | Description |
| -------------- | ------------------------------------------------------------ |
| -e | Allows you to override the default shell used as the transport for rsync. Command line options are permitted after the command name. |
-| -a, --archive | This is equivalent to -rlptgoD. It is a quick way of saying you want recursion and want to preserve almost everything (with -H being a notable omission). The only exception to the above equivalence is when --files-from is specified, in which case -r is not implied. 
-### [Math I/O](http://math-io.com) {.project-title}
+
+
+### [Math I/O](http://math-io.com)
Math I/O is a website I founded with [David Thames](http://davidcthames.com) and Stephen Shamaiengar. The goal of this website is to help reinforce high school level math concepts in the form of enjoyable games. Most of the games are made using HTML5 Canvas and Javascript. You can check them out [here](http://math-io.com/).
-
-
I ran Math I/O for a year until I moved away from the area. During that year, I worked on the Darts game, Speed Transformations, and Theta. I then took about a year off to get adjusted to my new place when I moved.
While I was away, Math I/O gained many new people, making it hard for them to work as one large group. David then decided to split the group up into smaller teams, inviting me to come back and lead one. I never ran a team remotely before, so I was excited to see how it would be like.
-The team I lead are mostly full of people starting out in programming. To help them out, I started giving lectures once a week to introduce concepts, and posted them here on my writings page. We would then practice these concepts while making a new game during the meetings. I couldn’t ask for a better team, their enthusiasm drives me to keep working at Math I/O.
\ No newline at end of file
+The team I lead are mostly full of people starting out in programming. To help them out, I started giving lectures once a week to introduce concepts, and posted them here on my writings page. We would then practice these concepts while making a new game during the meetings. I couldn't ask for a better team, their enthusiasm drives me to keep working at Math I/O.
diff --git a/content/projects/sentenceworthy.md b/content/projects/sentenceworthy.md
index 8fd70a4..85314ee 100644
--- a/content/projects/sentenceworthy.md
+++ b/content/projects/sentenceworthy.md
@@ -7,14 +7,10 @@ layout: revision
guid: http://brandonrozek.com/2016/10/360-revision-v1/
permalink: /2016/10/360-revision-v1/
---
-
+
-### [Sentence Worthy](http://sentenceworthy.com) {.project-title}
+### [Sentence Worthy](http://sentenceworthy.com)
Sentence Worthy is a side project created by [Tori Dayton](http://toridayton.com) and I. We combine both of our passions, writing and photography, and make something for others to enjoy. Have a look at our [creation](http://sentenceworthy.com).
-
-
I am the main developer and photographer of this site. I head out every so often and take pictures of whatever interests me. Then, I email Tori my choice picks and she tells me what she wants to do with the pictures and what ideas she has for them. I then edit the picture with her ideas in mind. After we go back and forth on the picture edits, Tori sends me a one sentence story she made that goes along with the picture. The picture and story then get published together onto the website. Hence the tagline, every picture is worth a sentence.
-
-
\ No newline at end of file
diff --git a/content/projects/toridayton.md b/content/projects/toridayton.md
index eaa2d11..5d51417 100644
--- a/content/projects/toridayton.md
+++ b/content/projects/toridayton.md
@@ -7,12 +7,11 @@ layout: revision
guid: http://brandonrozek.com/2016/10/364-revision-v1/
permalink: /2016/10/364-revision-v1/
---
-
+
+
### [Tori Dayton](http://toridayton.com) {.project-title}
-Tori Dayton is a great friend and poet, this is the site I made for her to showcase her writings. It’s the first WordPress project I worked on and it set the tone for all the future ones I did. Check out her [writings!](http://toridayton.com/work) I’m a fan of her work. (Not biased at all)
-
-
+Tori Dayton is a great friend and poet, this is the site I made for her to showcase her writings. It's the first WordPress project I worked on and it set the tone for all the future ones I did. Check out her [writings!](http://toridayton.com/work) I'm a fan of her work. (Not biased at all)
Fun Fact: I also worked on the [Tori Bot](http://toridayton.com/category/tori-bot/) on the site. Tori Bot takes existing poems and tries to generate a new one using the [Natural Language Toolkit](http://www.nltk.org/) library made for Python.
\ No newline at end of file
diff --git a/content/research/clusteranalysis/notes/lec1.md b/content/research/clusteranalysis/notes/lec1.md
index a1bbd11..c409cce 100644
--- a/content/research/clusteranalysis/notes/lec1.md
+++ b/content/research/clusteranalysis/notes/lec1.md
@@ -24,11 +24,11 @@ An extensive list of similarity measures for binary data exist, the reason for s
In some cases, zero-zero matches are equivalent to one-one matches and therefore should be included in the calculated similarity measure
-Example: Gender, where there is no preference as to which of the two categories should be coded as zero or one
+**Example**: Gender, where there is no preference as to which of the two categories should be coded as zero or one
In other cases the inclusion or otherwise of the matches is more problematic
-Example: When the zero category corresponds to the genuine absence of some property, such as wings in a study of insects
+**Example**: When the zero category corresponds to the genuine absence of some property, such as wings in a study of insects
The question that then needs to be asked is do the co-absences contain useful information about the similarity of the two objects?
@@ -152,7 +152,7 @@ Since for correlation coefficients we have that $-1 \le \phi_{ij} \le 1$ with th
The use of correlation coefficients in this context is far more contentious than its noncontroversial role in assessing the linear relationship between two variables based on $n$ observations.
-When correlations between two individuals are used to quantify their similarity the rows of the data matrix are standardized, not its columns.
+When correlations between two individuals are used to quantify their similarity the *rows of the data matrix are standardized*, not its columns.
**Disadvantages**
@@ -164,7 +164,7 @@ In addition, the correlation coefficient is unable to measure the difference in
However, the use of a correlation coefficient can be justified for situations where all of the variables have been measured on the same scale and precise values taken are important only to the extent that they provide information about the subject's relative profile
-Example: In classifying animals or plants, the absolute size of the organisms or their parts are often less important than their shapes. In such studies the investigator requires a dissimilarity coefficient that takes the value zero if and only if two individuals' profiles are multiples of each other. The angular separation dissimilarity measure has this property.
+**Example:** In classifying animals or plants, the absolute size of the organisms or their parts are often less important than their shapes. In such studies the investigator requires a dissimilarity coefficient that takes the value zero if and only if two individuals' profiles are multiples of each other. The angular separation dissimilarity measure has this property.
**Further considerations**
@@ -271,25 +271,26 @@ By also employing within-group correlations, the Mahalanobis distance takes acco
The use of Mahalanobis implies that the investigator is willing to **assume** that the covariance matrices are at least approximately the same in the two groups. When this is not so, this measure is an inappropriate inter-group measure. Other alternatives exist such as the one proposed by Anderson and Bahadur
-