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Dynamically select data frame columns using $ and a character value
I have a vector of different column names and I want to be able to loop over each of them to extract that column from a data.frame. For example, consider the data set mtcars and some variable names stored in a character vector cols . When I try to select a variable from mtcars using a dynamic s...
Remove shadow below actionbar
...he shadow add this to your app theme:
<style name="MyAppTheme" parent="android:Theme.Holo.Light">
<item name="android:windowContentOverlay">@null</item>
</style>
UPDATE:
As @Quinny898 stated, on Android 5.0 this has changed, you have to call setElevation(0) on your act...
How to generate all permutations of a list?
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Starting with Python 2.6 (and if you're on Python 3) you have a standard-library tool for this: itertools.permutations.
import itertools
list(itertools.permutations([1, 2, 3]))
If you're using an older Python (<2.6) for some reason or are just...
What APIs are used to draw over other apps (like Facebook's Chat Heads)?
How does Facebook create the Chat Heads on Android? What is the API to create the floating views on top of all other views?
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...de a basic rails app with a simple pages controller with an index function and when I load the page I get:
14 Answers
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How can I wrap text in a label using WPF?
I have a TextBox and a Label. After clicking a button, I execute the following code:
10 Answers
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How to create PDFs in an Android app? [closed]
Is there any way to create PDF Files from an Android application?
8 Answers
8
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How to use OpenFileDialog to select a folder?
...he FolderBrowserDialog (FBD). I concur that the FBD is awful from a user standpoint.
– Michael Paulukonis
Apr 28 '15 at 15:09
29
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IPC performance: Named Pipe vs Socket
...y? I would prefer to use sockets because they can do two-way communication and are very flexible but will choose speed over flexibility if it is by considerable amount.
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Modify UIImage renderingMode from a storyboard/xib file
...lass rather to do the key value setting. Because, it this easier to set up and we could avoid the number setting to the enumeration value. For example: ` @implementation TemplateRenderingImageView -(id)initWithCoder:(NSCoder *)aDecoder{ self = [super initWithCoder:aDecoder]; if (self) { ...