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Apply a function to every row of a matrix or a data frame
... 3 4
[3,] 5 6
R> apply(M, 1, function(x) 2*x[1]+x[2])
[1] 4 10 16
R>
This takes a matrix and applies a (silly) function to each row. You pass extra arguments to the function as fourth, fifth, ... arguments to apply().
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I can not find my.cnf on my windows computer [duplicate]
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edited Jul 16 '18 at 22:10
Richard
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Change EOL on multiple files in one go
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103
The Replace dialog can handle extended characters like EOL. Just change "Search Mode" to "Ext...
How to split a string in shell and get the last field
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answered Jul 2 '10 at 0:05
StephenStephen
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Is there a Null OutputStream in Java?
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answered Mar 28 '09 at 10:38
McDowellMcDowell
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What's the actual use of 'fail' in JUnit test case?
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edited Dec 13 '10 at 10:32
answered Oct 6 '10 at 6:28
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How to stop an app on Heroku?
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Ryan DaigleRyan Daigle
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PHP Remove elements from associative array
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answered Jun 23 '12 at 1:10
ADFSADFS
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Why doesn't margin:auto center an image?
The div expands to 100% as it should but the image does not center itself. Why?
8 Answers
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What does the Subversion status symbol “~” mean?
...o fix this?
– Phill Pafford
Sep 21 '10 at 18:28
48
Best solution is to rename the new object (in ...