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How can I remove all text after a character in bash?
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138
An example might have been useful, but if I understood you correctly, this would work:
echo "H...
Convert data.frame columns from factors to characters
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370
Just following on Matt and Dirk. If you want to recreate your existing data frame without cha...
to_string is not a member of std, says g++ (mingw)
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13 Answers
13
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Generate 'n' unique random numbers within a range [duplicate]
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396
If you just need sampling without replacement:
>>> import random
>>> random...
Remove array element based on object property
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answered Mar 8 '13 at 6:19
jAndyjAndy
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Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...p://groups.google.com/group/android-developers/browse_thread/thread/9e215c83c3819953
* @see http://gskinner.com/blog/archives/2007/12/colormatrix_cla.html
* @param value degrees to shift the hue.
* @return
*/
public static ColorFilter adjustHue( float value )
{
ColorMatrix cm = new ColorMatr...
What are “named tuples” in Python?
Reading the changes in Python 3.1 , I found something... unexpected:
11 Answers
11
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Quickly reading very large tables as dataframes
I have very large tables (30 million rows) that I would like to load as a dataframes in R. read.table() has a lot of convenient features, but it seems like there is a lot of logic in the implementation that would slow things down. In my case, I am assuming I know the types of the columns ahead o...
Xcode Simulator: how to remove older unneeded devices?
I'm running Xcode 4.3.1 iOS-Simulator which originally only supports iOS 5.1.
18 Answers
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How to append contents of multiple files into one file
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317
You need the cat (short for concatenate) command, with shell redirection (>) into your outp...