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How to drop columns by name in a data frame
I have a large data set and I would like to read specific columns or drop all the others.
11 Answers
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How to configure an app to run correctly on a machine with a high DPI setting (e.g. 150%)?
...o far so good!
But instead of rendering the fonts with a higher font size, all texts are just scaled up, too. That of course leads to very blurry text (on all controls like buttons etc.).
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Is there a way to style a TextView to uppercase all of its letters?
... attribute or style to a TextView that will make whatever text it has in ALL CAPITAL LETTERS.
7 Answers
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Difference between a virtual function and a pure virtual function [duplicate]
... class. Derived classes can override virtual functions. Virtual functions called through base class pointers/references will be resolved at run-time. That is, the dynamic type of the object is used instead of its static type:
Derived d;
Base& rb = d;
// if Base::f() is virtual and Derived o...
CSS3 Spin Animation
... because you explained it best and you are the only answer that included all the prefixed versions.
– iambriansreed
Feb 13 '13 at 18:07
54
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Can I automatically increment the file build version when using Visual Studio?
I was just wondering how I could automatically increment the build (and version?) of my files using Visual Studio (2005).
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How to get rspec-2 to give the full trace associated with a test failure?
...backtrace (that includes stuff like rails and rspec and other gems) almost all of the time - the only time you ever need it is to debug or understand something caused by the gem itself. So stick to the default backtrace clean patterns, and use -b in the odd case when you need it.
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Delaying a jquery script until everything else has loaded
... event for your code since this happens after the page is fully loaded and all the code in the various $(document).ready() handlers have finished running.
$(window).load(function(){
//your code here
});
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How do I revert all local changes in Git managed project to previous state?
...to the index (i.e., that you have added), do this. Warning this will reset all of your unpushed commits to master!:
git reset
If you want to revert a change that you have committed, do this:
git revert <commit 1> <commit 2>
If you want to remove untracked files (e.g., new files, ge...
Java Interfaces/Implementation naming convention [duplicate]
...tation tautology that adds nothing but more stuff to type to your code.
All modern Java IDE's mark Interfaces and Implementations and what not without this silly notation. Don't call it TruckClass that is tautology just as bad as the IInterface tautology.
If it is an implementation it is a cla...