回答編集履歴
1
補足追加
answer
CHANGED
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@@ -23,4 +23,43 @@
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a = np.arange(12).reshape(3,4)
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list_b = [10, -10]
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res = np.where(a % 2 == 0, a * list_b[0] ,a * list_b[1])
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-
```
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```
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---
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**【補足】**
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lambdaで引数をバインドした例
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```Python
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import numpy as np
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36
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def hoge(a, list_b):
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if a % 2 == 0: # 偶数
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x = a * list_b[0]
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else: # 奇数
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x = a * list_b[1]
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return x
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43
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45
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# 変数の定義
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a = np.arange(12).reshape(3,4)
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param_b = [10, -10]
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param_c = [100, -100]
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param_d = [1000, -1000]
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# param_b を引数にした関数をvectorize
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uf_hoge_b = np.vectorize(lambda a: hoge(a, param_b))
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# param_c を引数にした関数をvectorize
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uf_hoge_c = np.vectorize(lambda a: hoge(a, param_c))
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# param_d を引数にした関数をvectorize
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uf_hoge_d = np.vectorize(lambda a: hoge(a, param_d))
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# 処理
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print(uf_hoge_b(a))
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print(uf_hoge_c(a))
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print(uf_hoge_d(a))
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```
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