回答編集履歴
1
d
answer
CHANGED
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@@ -3,4 +3,29 @@
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3
3
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```diff
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4
4
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- for i in range(len(data)):
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5
5
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+ for i in range(data.shape[1]):
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6
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```
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7
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+
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8
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## 追記
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9
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10
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```python
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11
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import numpy as np
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12
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import csv
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13
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14
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15
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def standardize(x):
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16
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mean = x.mean()
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std = x.std()
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18
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19
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return (x - mean) / std
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20
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21
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22
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data = np.loadtxt("sample.csv", delimiter=",", skiprows=1)
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23
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24
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25
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normalized = np.empty_like(data)
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26
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27
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for i in range(data.shape[1]):
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28
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normalized[:, i] = standardize(data[:, i])
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29
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30
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np.savetxt("normalized.csv", normalized, delimiter=",")
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6
31
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```
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