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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()
...
What's a standard way to do a no-op in python?
...compound_stmts.html) – like e.g. as a sub-expression to an existing code idiom like a comprehension, or a lambda, or (god forbid) a string to be passed into eval(…) (which q.v. docs.python.org/3/library/functions.html#eval if you must).
– fish2000
Apr 23 '1...
Difference between constituency parser and dependency parser
...
> Constituent-based approaches to parsing provide similar information, but it often has to be distilled from the trees via techniques such as the head finding rules discussed in Chapter 11. web.stanford.edu/~jurafsky/slp3/11.pdf
– gkiko
...
PHP: Count a stdClass object
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Count Normal arrya or object
count($object_or_array);
Count multidimensional arrya or object
count($object_or_array, 1); // 1 for multidimensional array count, 0 for Default
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im...
When annotating a class with @Component, does this mean it is a Spring Bean and Singleton?
... creating Singletons, will i not run into concurrency issues? To my newbie idea it will results in a bean that is used throughout the ApplicationContext, so concurrent users will get a reference to the single bean. Or am i missing something?
– Marco
May 6 '11 a...
How to compare two files not in repo using git
...s answer to show up.
This question: How to use git diff --color-words outside a Git repository?
Shows how to use git to diff files where at least one of them is not in the repository by using --no-index:
git diff --no-index file1.txt file2.txt
It doesn't matter which one is tracked by git and w...
What is Microsoft.csharp.dll in .NET 4.0
...ework set to 3.5) to use with Unity, and removing it fromthe .csproj file did the trick.
– Wolfram
May 20 '15 at 13:45
4
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How to write “Html.BeginForm” in Razor
... new { enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
Select a file <input type="file" name="file" />
<input type="submit" value="Upload" />
</fieldset>
}
and generates as expected:
<form actio...
What does a tilde in angle brackets mean when creating a Java generic class?
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It is just a shorthand for "same as in declaration".
Some IDEs, e.g. IntelliJ use this too.
The files on disk do not have this notation, which is only a compaction in the IDE GUI.
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Repeatedly run a shell command until it fails?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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