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Regex to validate date format dd/mm/yyyy
...post.
I modified it to take dd/mm/yyyy, dd-mm-yyyy or dd.mm.yyyy.
^(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[13-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$...
How can I use “:” as an AWK field separator?
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"-F" is a command line argum>me m>nt, not AWK syntax. Try:
echo "1: " | awk -F ":" '/1/ {print $1}'
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Split (explode) pandas datafram>me m> string entry to separate rows
...bout som>me m>thing 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 renam>me m> the columns
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...ally true because som>me m> 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 arithm>me m>tic 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...
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