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How to redirect output to a file and stdout
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Which is the correct shorthand - “regex” or “regexp” [closed]
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13 Answers
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Replacing Pandas or Numpy Nan with a None to use with MysqlDB
...n use where, it's worth noting that you can do this natively in pandas:
df1 = df.where(pd.notnull(df), None)
Note: this changes the dtype of all columns to object.
Example:
In [1]: df = pd.DataFrame([1, np.nan])
In [2]: df
Out[2]:
0
0 1
1 NaN
In [3]: df1 = df.where(pd.notnull(df), None...
UnicodeDecodeError, invalid continuation byte
Why is the below item failing? Why does it succeed with "latin-1" codec?
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How to compare two floating point numbers in Bash?
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Escape regex special characters in a Python string
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edited Jun 20 at 9:12
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answered Nov 17 '10 at 8:13
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What's an easy way to read random line from a file in Unix command line?
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Test if a vector contains a given element
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Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are desig...