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URL query parameters to dict python
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answered Feb 5 '14 at 17:45
Martijn Pieters♦Martijn Pieters
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How to drop columns by name in a data frame
...exing or the subset function. For example :
R> df <- data.frame(x=1:5, y=2:6, z=3:7, u=4:8)
R> df
x y z u
1 1 2 3 4
2 2 3 4 5
3 3 4 5 6
4 4 5 6 7
5 5 6 7 8
Then you can use the which function and the - operator in column indexation :
R> df[ , -which(names(df) %in% c("z","u"))]
x ...
New Line on PHP CLI
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answered Jul 25 '11 at 15:56
KingCrunchKingCrunch
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Compress files while reading data from STDIN
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185
Yes, use gzip for this. The best way is to read data as input and redirect the compressed to out...
Format string, integer with leading zeros
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GumboGumbo
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Using app.configure in express
... difference at all.
http://expressjs.com/api.html#app.configure
Update 2015:
@IlanFrumer points out that app.configure is removed in Express 4.x. If you followed some outdated tutorials and wondering why it didn't work, You should remove app.configure(function(){ ... }. Like this:
var express = r...
Twig: in_array or similar possible within if statement?
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465
You just have to change the second line of your second code-block from
{% if myVar is in_array(...
What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
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edited Feb 15 '18 at 7:24
Pang
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mysql command for showing current configuration variables
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edited Aug 25 '16 at 2:57
Pozzo-Balbi
14355 bronze badges
answered Sep 29 '09 at 16:53
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