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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...me question,
Why not try something like:
scale_color_manual(values = c("foo" = "#999999", "bar" = "#E69F00"))
If you have categorical values, I don't see a reason why this should not work.
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Ant: How to execute a command for each file in directory?
...es ant-contrib.
Updated Example for recent ant-contrib:
<target name="foo">
<foreach target="bar" param="theFile">
<fileset dir="${server.src}" casesensitive="yes">
<include name="**/*.java"/>
<exclude name="**/*Test*"/>
</fileset>
</f...
jQuery .hasClass() vs .is()
...
Both should be pretty close in terms of performance but $('#foo').hasClass('bar'); seems more readable and semantically correct to me.
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What Product Flavor does Android Studio build by default in build.gradle?
...
Yes, there is a way:
android {
productFlavors {
foo {
isDefault true
}
}
}
And otherwise variants with the debug build type are favoured.
It was added in Android Studio 3.5, see feature request:
"Included in Android Gradle Plugin 3.5.0-alpha08 and...
Redirect stdout to a file in Python?
...se shell redirection when executing (same on Windows and Linux):
$ python foo.py > file
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private final static attribute vs private final attribute
...use:
private static final int NUMBER = 10;
Why? This reduces the memory footprint per instance. It possibly is also favourable for cache hits. And it just makes sense: static should be used for things that are shared across all instances (a.k.a. objects) of a certain type (a.k.a. class).
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PHP Error handling: die() Vs trigger_error() Vs throw Exception
...while ($row = gather_data()) {
$db->query('INSERT INTO `table` (`foo`,`bar`) VALUES(?,?)', ...);
}
$db->query('COMMIT');
} catch(Exception $e) {
$db->query('ROLLBACK');
}
Here, if gather_data() just plain croaked (using E_USER_ERROR or die()) there's a chance, previous ...
An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
...and, authorizing which users can access a .ASPX page such as a request for Foo.aspx is trivial even in IIS 6/Classic because IIS always hands those requests off to the ASP.NET pipeline. In Classic mode ASP.NET does not know what it hasn't been told and there is a lot that IIS 6/Classic may not be te...
Search for “does-not-contain” on a DataFrame in pandas
...df["col1"].str.contains('this'|'that')==False and df["col2"].str.contains('foo'|'bar')==True]? Thanks!
– tommy.carstensen
May 24 '17 at 10:54
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When should you use 'friend' in C++?
...en they are cumbersome (cpp-level concrete classes/masked typedefs) or not foolproof (comments or function name conventions).
Onto the answer;
The friend specifier allows the designated class access to protected data or functionality within the class making the friend statement. For example in th...