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Numbering rows within groups in a data frame
...a 0.30776611 3
5 aaa 0.46854928 4
3 aaa 0.55232243 5
10 bbb 0.17026205 1
8 bbb 0.37032054 2
6 bbb 0.48377074 3
9 bbb 0.54655860 4
7 bbb 0.81240262 5
13 ccc 0.28035384 1
14 ccc 0.39848790 2
11 ccc 0.62499648 3
15 ccc 0.76255108 4
12 ccc 0.88216552 5
If df$cat is a f...
Why is list initialization (using curly braces) better than the alternatives?
...t's an extremely poorly thought out feature.
– user1520427
Feb 2 '15 at 1:40
15
@user1520427 That...
Configuring diff tool with .gitconfig
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answered Jun 20 '11 at 14:18
Fredrik PihlFredrik Pihl
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Using IntelliJ to amend git commit message
...dows => Version Control. (Windows (Alt + 9) / OS X (Cmd + 9))
IntelliJ 2017.1 and higher => Go to Log and right click + reword or press F2.
While you are on the same branch, ( your checked out branch is the same )
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Read an Excel file directly from a R script
... BenBen
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How to get a list of column names on Sqlite3 database?
...name(stmt, i));
– Erik Aronesty
May 20 '15 at 21:09
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How to split a string in shell and get the last field
...e given problem, the answer of William below (stackoverflow.com/a/3163857/520162) also returns 5 if the string is 1:2:3:4:5: (while using the string operators yields an empty result). This is especially handy when parsing paths that could contain (or not) a finishing / character.
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How to drop into REPL (Read, Eval, Print, Loop) from Python code
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answered Sep 8 '09 at 20:34
AlexAlex
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How to paste text to end of every line? Sublime 2
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edited May 22 '12 at 20:56
answered May 22 '12 at 20:45
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How do I 'svn add' all unversioned files to SVN?
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edited Nov 1 '15 at 19:20
Peter Mortensen
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