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Split delimited strings in a column and insert as new rows [duplicate]
...the unnest function from Hadley Wickham's tidyr package (see release notes http://blog.rstudio.org/2014/12/08/tidyr-0-2-0/)
> library(tidyr)
> library(dplyr)
> mydf
V1 V2
2 1 a,b,c
3 2 a,c
4 3 b,d
5 4 e,f
6 . .
> mydf %>%
mutate(V2 = strsplit(as.character(...
How can I run code on a background thread on Android?
...pdate the UI
execute (short) code which will take at most a few seconds to complete
THEN use the following clean and efficient pattern which uses AsyncTask:
AsyncTask.execute(new Runnable() {
@Override
public void run() {
//TODO your background code
}
});
...
Is it possible to cherry-pick a commit from another git repository?
I'm working with a git repository that needs a commit from another git repository that knows nothing of the first.
11 Answe...
Using sphinx with Markdown instead of RST
...verything irrelevant to markdown and changing the different syntaxes (this comparison might help)...
EDIT: I don't recommend this route unless you're prepared to heavily test it. Markdown already has too many subtly different dialects and this will likely result in yet-another-one...
UPDATE: http...
Calling startActivity() from outside of an Activity?
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How to run a JAR file
...ecify a Main-Class in the jar file manifest.
Oracle's tutorial contains a complete demonstration, but here's another one from scratch. You need two files:
Test.java:
public class Test
{
public static void main(String[] args)
{
System.out.println("Hello world");
}
}
manifest....
Case conventions on element names?
...d to Metro Smurf's answer.
The National Information Exchange Model (NIEM: http://en.wikipedia.org/wiki/National_Information_Exchange_Model) says to use:
Upper CamelCase (PascalCase) for elements.
(lower) camelCase for attributes.
The NIEM makes for a good option when you're looking to conform t...
Is there an equivalent of lsusb for OS X
...uldn't be called "lsusb" considering what lsusb can actually do: askubuntu.com/a/604169/598643
– Mr. Kennedy
May 31 '17 at 14:07
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Error inflating when extending a class
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How to add a jar in External Libraries in android studio
...file and at end click on Add as library. This will take care of adding compile files('libs/library_name.jar') in build.gradle [You don't have to manually enter this in your build file].
Now you can start using the library in your project.
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