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Transpose a data frame
I need to transpose a large data frame and so I used:
4 Answers
4
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SQL RANK() versus ROW_NUMBER()
...rows that have duplicate values,in which case the same ranking is assigned and a gap appears in the sequence for each duplicate ranking.
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How to use RSpec's should_raise with any kind of exception?
...e_method }.should raise_error
See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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You have already activated X, but your Gemfile requires Y
... all the time, you could set up an alias or function in your shell for commands you commonly use with Bundler. For example this is what I use for Rake:
$ type bake
bake is a function
bake ()
{
bundle exec rake "$@"
}
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RootViewController Switch Transition Animation
...his approach, it worked partially, the thing is my app shall only stay in landscape mode, but by doing rootviewcontroller transition, the newly-presented view controller is loaded in portrait at the beginning, and quickly rotate to landscape mode, how to solve that?
– Chris Che...
Android Closing Activity Programmatically
...ity.finish() method (quoting) :
Call this when your activity is done
and should be closed.
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Hide all warnings in ipython
I need to produce a screencast of an ipython session, and to avoid confusing viewers, I want to disable all warnings emitted by warnings.warn calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings?
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Preview layout with merge root tag in Intellij IDEA/Android Studio
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There is a new parentTag tools attribute (added in Android Studio 2.2) that you can use to specify the layout type for a merge tag, which will make the layout render correctly in the layout editor preview.
So using your example:
<merge xmlns:android="http://schemas.andr...
Android LocationClient class is deprecated but used in documentation
...e using the new/latest Location Service API... Enjoy developing :)
import android.location.Location;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms....
Getting jQuery to recognise .change() in IE
I'm using jQuery to hide and show elements when a radio button group is altered/clicked. It works fine in browsers like Firefox, but in IE 6 and 7, the action only occurs when the user then clicks somewhere else on the page.
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