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Split (explode) pandas dataframe string entry to separate rows
...bout something like this:
In [55]: pd.concat([Series(row['var2'], row['var1'].split(','))
for _, row in a.iterrows()]).reset_index()
Out[55]:
index 0
0 a 1
1 b 1
2 c 1
3 d 2
4 e 2
5 f 2
Then you just have to rename the columns
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Computational complexity of Fibonacci Sequence
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What's the difference between tilde(~) and caret(^) in package.json?
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19 Answers
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Is there a way to detect if an image is blurry?
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Why are these numbers not equal?
...ally true because some values which are simple, finite decimals (such as 0.1 and 0.05) are not represented exactly in the computer and so the results of arithmetic on them may not give a result that is identical to a direct representation of the "known" answer.
This is a well known limitation of co...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
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This approach will use the actual boolean type (and resolve to true and false) if the compiler...
灰度图中找出深色像素并给出坐标 · App Inventor 2 中文网
...、蓝、透明度四个数；灰度图的三个颜色分量相等，第 1 项就是灰度值（0 最黑，255 最白）；
颜色抽屉的「是深色吗」：直接判断一个颜色是不是深色。
思路：取颜色 → 算灰度 → 和阈值比较。灰度小于阈值就算深色，阈...
Ruby - elegantly convert variable to an array if not an array already
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Set every cell in matrix to 0 if that row or column contains a 0
Given a NxN matrix with 0s and 1s. Set every row that contains a 0 to all 0 s and set every column that contains a 0 to all 0 s.
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