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What does the (unary) * operator do in this Ruby code?
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271
The * is the splat operator.
It expands an Array into a list of arguments, in this case a lis...
How to delete a folder with files using Java
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25 Answers
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Find integer index of rows with NaN in pandas dataframe
...an use to index back into df, e.g.:
df['a'].ix[index[0]]
>>> 1.452354
For the integer index:
df_index = df.index.values.tolist()
[df_index.index(i) for i in index]
>>> [3, 6]
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Getting a list item by index
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answered Mar 17 '13 at 2:06
Mitch WheatMitch Wheat
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Efficient way to insert a number into a sorted array of numbers?
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edited Sep 14 '12 at 9:45
Sicco
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answer...
ByteArray 扩展 - 字节数组处理工具 · App Inventor 2 中文网
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How do I convert a numpy array to (and display) an image?
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240
You could use PIL to create (and display) an image:
from PIL import Image
import numpy as np
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What's the maximum value for an int in PHP?
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124
From the PHP manual:
The size of an integer is
platform-dependent, although a maximum
value of...