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Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
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381
Seems you forgot the '' of your string.
In [43]: df['Value'] = df.apply(lambda row: my_test(row...
How can I list (ls) the 5 last modified files in a directory?
...y using head or tail. If you want the 5 most-recently modified files:
ls -1t | head -5
The -1 (that's a one) says one file per line and the head says take the first 5 entries.
If you want the last 5 try
ls -1t | tail -5
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Using parameters in batch files at Windows command line
...through the command line can be accessed in batch files with the notation %1 to %9. There are also two other tokens that you can use:
%0 is the executable (batch file) name as specified in the command line.
%* is all parameters specified in the command line -- this is very useful if you want to fo...
How can I get LINQ to return the object which has the max value for a given property? [duplicate]
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10 Answers
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How can I count the number of matches for a regex?
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matcher.find() does not find all matches, only the next match.
Solution for Java 9+
long mat...
How do I view the SQLite database on an Android device? [duplicate]
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19 Answers
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How do I define a method in Razor?
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Leaving alone any debates over when (if ever) it should be done, @functions is how you do it.
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Controlling maven final name of jar artifact
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edited May 23 '17 at 10:31
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answered Jan 23 '13 at 22:34
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How can I delay a method call for 1 second?
Is there an easy way delay a method call for 1 second?
11 Answers
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How do I get the time of day in javascript/Node.js?
I want to get 1 to 24 , 1 being 1am Pacific Time.
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