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Convert a row of a data frame to vector
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edited Oct 30 '19 at 16:15
answered Jan 23 '13 at 16:42
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Downloading Java JDK on Linux via wget is shown license page instead
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1670
+50
*Works as...
How does @synchronized lock/unlock in Objective-C?
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answered Aug 1 '09 at 1:13
Louis GerbargLouis Gerbarg
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Replace specific characters within strings
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410
With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18", ...
How to check if an element is in an array
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Sazzad Hissain Khan
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answered Aug 19 '14 at 19:41
Martin RMartin R
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How to get indices of a sorted array in Python
...able:
>>> import numpy
>>> numpy.argsort(myList)
array([0, 1, 2, 4, 3])
http://docs.scipy.org/doc/numpy/reference/generated/numpy.argsort.html
This returns the arguments that would sort the array or list.
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What does a tilde do when it precedes an expression?
...ntation of the IEEE 754 float (how JavaScript treats numbers) would be...
0011 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
So ~ converts its operand to a 32 bit integer (bitwise operators in JavaScript do that)...
0000 0000 0000 0000 0000 0000 0000 0001
If it wer...
List all the modules that are part of a python package?
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edited Nov 10 '09 at 13:41
answered Nov 10 '09 at 12:58
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How do I trim a file extension from a String in Java?
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290
This is the sort of code that we shouldn't be doing ourselves. Use libraries for the mundane stu...
Gesture recognizer and button actions
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edited Jul 26 '11 at 11:40
forsvarir
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answered J...