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Plotting two variables as lines using ggplot2 on the same graph
...t() from package reshape or reshape2) or gather()/pivot_longer() from the tidyr package:
library("reshape2")
library("ggplot2")
test_data_long <- melt(test_data, id="date") # convert to long format
ggplot(data=test_data_long,
aes(x=date, y=value, colour=variable)) +
geom_line()
...
Empty Git submodule folder when repo cloned
... when you try to update it to a newer version.
– Noitidart
Nov 26 '16 at 10:04
...
Border around tr element doesn't show?
...
Add this to the stylesheet:
table {
border-collapse: collapse;
}
JSFiddle.
The reason why it behaves this way is actually described pretty well in the specification:
There are two distinct models for setting borders on table cells in
CSS. One is most suitable for so-called separated bo...
What is the Swift equivalent of isEqualToString in Objective-C?
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=== is identity operators whereas == is equality operator (by default call isEqual: on NSObject and its subclasses)
– Bryan Chen
Jun 7 '14 at 11:42
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Is a url query parameter valid if it has no value?
Is a url like http://example.com/foo?bar valid?
8 Answers
8
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How to keep up with the latest versions of Node.js in Ubuntu? PPA? Compiling?
...ository is the only way to install Node that have never failed me. And it did it again today. Thanks!
– slacktracer
Nov 9 '13 at 0:29
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select into in mysql
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Is there an onSelect event or equivalent for HTML ?
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jsfiddle.net/ecmanaut/335XK works in osx Chrome 30, Safari 6, Firefox 17.
– ecmanaut
Oct 11 '13 at 20:31
2
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“Header Search Paths” vs. “User Header Search Paths” in Xcode?
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did not know about Boost (boost.org)! Thanks, it looks very interesting.
– mindthief
Aug 11 '10 at 22:49
1...
Root user/sudo equivalent in Cygwin?
...ng the file to disk, instead of opening a text editor. Nice, thank you! I did not know how to use heredocs in Bash!
– dotancohen
Jan 10 '14 at 15:46
8
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