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How to remove last n characters from every element in the R vector
...("foo_bar","bar_foo","apple","beer")
a = data.frame("data"=char_array,"data2"=1:4)
a$data = substr(a$data,1,nchar(a$data)-3)
a should now contain:
data data2
1 foo_ 1
2 bar_ 2
3 ap 3
4 b 4
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How to set transform origin in SVG
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Persijn
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answered Jul 15 '11 at 23:16
Peter CollingridgePet...
Pull remote branch into local repo with different name?
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How to call a method after a delay in Android
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Run a PostgreSQL .sql file using command line arguments
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Why is Scala's immutable Set not covariant in its type?
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answered Mar 24 '09 at 18:34
Daniel SpiewakDaniel Spiewak
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Xcode 4 - detach the console/log window
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125
Go to Xcode preferences, and open the Behavior tab.
Tell Xcode to open a tab called "Debugger"...
How can I read a whole file into a string variable
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262
Use ioutil.ReadFile:
func ReadFile(filename string) ([]byte, error)
ReadFile reads the f...
How to execute a file within the python interpreter?
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237
Several ways.
From the shell
python someFile.py
From inside IDLE, hit F5.
If you're typin...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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edited May 2 '13 at 14:23
Mason Wan
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answered Sep 9 '08...