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Split a vector into chunks in R
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326
A one-liner splitting d into chunks of size 20:
split(d, ceiling(seq_along(d)/20))
More detai...
Purpose of asterisk before a CSS property
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6 Answers
6
Active
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pass **kwargs argument to another function with **kwargs
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163
In the second example you provide 3 arguments: filename, mode and a dictionary (kwargs). But Py...
How can I remove a key and its value from an associative array?
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6 Answers
6
Active
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Assign multiple columns using := in data.table, by group
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162
This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, b...
Maven in Eclipse: step by step installation [closed]
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(Edit 2016-10-12: Many Eclipse downloads from https://eclipse.org/downloads/eclipse-packages/ have M2Eclipse included already. As of Neon both the Java and the Java EE packages do - look for "Maven support")
Way 1: Maven Eclipse plu...
Omitting the first line from any Linux command output
... from the output of ls -latr "some path" Since I need to remove total 136 from the below output
4 Answers
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jQuery attr vs prop?
...or all attributes. prop is for properties.
In older jQuery versions (<1.6), we just had attr. To get to DOM properties such as nodeName, selectedIndex, or defaultValue you had to do something like:
var elem = $("#foo")[0];
if ( elem ) {
index = elem.selectedIndex;
}
That sucked, so prop was ad...
Following git-flow how should you handle a hotfix of an earlier release?
...ase.
This thread has more information, with these examples:
git checkout 6.0
git checkout -b support/6.x
git checkout -b hotfix/6.0.1
... make your fix, then:
git checkout support/6.x
git merge hotfix/6.0.1
git branch -d hotfix/6.0.1
git tag 6.0.1
or using git flow commands
git flow support ...
Print all but the first three columns
...S; if(NF) printf "%s",$NF; printf ORS}'
### Example ###
$ echo '1 2 3 4 5 6 7' |
awk '{for(i=4;i<NF;i++)printf"%s",$i OFS;if(NF)printf"%s",$NF;printf ORS}' |
tr ' ' '-'
4-5-6-7
Sudo_O proposes an elegant improvement using the ternary operator NF?ORS:OFS
$ echo '1 2 3 4 5 6 7' |
awk '{ f...