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How can I use “:” as an AWK field separator?
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"-F" is a command line argument, not AWK syntax. Try:
echo "1: " | awk -F ":" '/1/ {print $1}'
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Why does direction of index matter in MongoDB?
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114
MongoDB concatenates the compound key in some way and uses it as the key in a BTree.
When fin...
how to draw smooth curve through N points using javascript HTML5 canvas?
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Find the most frequent number in a numpy vector
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Floating point vs integer calculations on modern hardware
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Most popular screen sizes/resolutions on Android phones [closed]
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You can see the resolutions for those categories in the Table 2, in this section: http://develop...
Regular expression to match numbers with or without commas and decimals in text
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What do “branch”, “tag” and “trunk” mean in Subversion repositories?
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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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