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22 lines
472 B
Markdown
22 lines
472 B
Markdown
---
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title: "Reverse One-Hot Encode"
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date: 2020-10-11T21:58:47-04:00
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draft: false
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tags: []
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---
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Let's say that you have a dataset that is one hot encoded like the following observation:
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```python
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import numpy as np
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obs = np.array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0])
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```
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The easiest way to reverse one-hot encode the structure, is to take the `argmax` of the observation.
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```python
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reverse_encoding = np.argmax(obs)
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# 13
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```
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