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How to modify PATH for Homebrew?
Trying to install ruby 1.9.3, read that I need to install homebrew first. Ran brew doctor, and it's giving me a bunch of warnings. One of which is:
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Team Build Error: The Path … is already mapped to workspace
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23 Answers
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Adding List.add() another list
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edited Jun 19 '13 at 21:12
answered Apr 15 '11 at 1:25
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Mongo interface [closed]
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RobIII
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answered Nov 25 '10 at 3:02
Justin JenkinsJustin ...
python assert with and without parenthesis
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130
The last assert would have given you a warning (SyntaxWarning: assertion is always true, perhap...
How do I convert a Vector of bytes (u8) to a string
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3 Answers
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Show percent % instead of counts in charts of categorical variables
... geom_bar(aes(y = (..count..)/sum(..count..))) +
## version 3.0.0
scale_y_continuous(labels=percent)
Here's a reproducible example using mtcars:
ggplot(mtcars, aes(x = factor(hp))) +
geom_bar(aes(y = (..count..)/sum(..count..))) +
scale_y_continuous(labe...
R object identification
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data(cars)
obj <- lm(dist ~ speed, data=cars)
..etc.
If obj is an S3 or S4 object, you can also try methods or showMethods, showClass, etc. Patrick Burns' R Inferno has a pretty good section on this (sec #7).
EDIT: Dirk and Hadley mention str(obj) in their answers. It really is much bette...
How can I do division with variables in a Linux shell?
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edited Aug 7 '13 at 3:04
answered Aug 7 '13 at 2:59
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?
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Here's an example using typical settings for an x86 processor (all used 32 and 64 bit modes):
struct X
{
short s; /* 2 bytes */
/* 2 padding bytes */
int i; /* 4 bytes */
char c; /* 1 byte */
/* 3 padding bytes */
};
struct Y
{
int i; /* 4 bytes */...