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Where can I learn how to write C code to speed up slow R functions? [closed]
...for learning how to write C code for use with R? I know about the system and foreign language interfaces section of R extensions, but I find it pretty hard going. What are good resources (both online and offline) for writing C code for use with R?
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Toggle button using two image on different state
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Do this:
<ToggleButton
android:id="@+id/toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/check" <!--check.xml-->
android:layout_margin="10dp"
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How do you use “git --bare init” repository?
... you would in a normal non-bare repository (e.g. with git add <file> and a subsequent git commit.)
You almost always update a bare repository by pushing to it (using git push) from another repository.
Note that in this case you'll need to first allow people to push to your repository. When i...
How to create byte array from HttpPostedFile
.... Thank you for this simple solution (with the comments of jeff, Spongeboy and Chris)!
– David
Jun 9 '10 at 14:59
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Should I use a class or dictionary?
I have a class that contains only fields and no methods, like this:
9 Answers
9
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No resource found - Theme.AppCompat.Light.DarkActionBar
I used ActionBar Style Generator, and now trying to use into my app, but getting :
17 Answers
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rails simple_form - hidden field - create?
...html => { :value => "some value" }
– Linus Oleander
Mar 20 '11 at 21:14
5
This is the simp...
Do while loop in SQL Server 2008
...ority.com/2007/10/24/sql-server-simple-example-of-while-loop-with-continue-and-break-keywords/
Example of WHILE Loop
DECLARE @intFlag INT
SET @intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT @intFlag
SET @intFlag = @intFlag + 1
END
GO
ResultSet:
1
2
3
4
5
Example of WHILE L...
javax vs java package
What's the rationale behind the javax package? What goes into java and what into javax?
7 Answers
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Turning off some legends in a ggplot
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Note to self: if you have a geom_linerange() and the legend is showing a cross instead of a line, insert show.legend=FALSE inside the geom_linerange().
– PatrickT
Sep 30 '17 at 8:51
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