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How do I replace NA values with zeros in an R dataframe?
... mutate(myCol1 = if_else(is.na(myCol1), 0, myCol1))
Note: This works per selected column, if we need to do this for all column, see @reidjax's answer using mutate_each.
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How can I see what has changed in a file before committing to git?
...t add -p is a combination of staging, seeing the changes you can stage and selecting them one by one in an interactive manner. See Commit only part of a file in Git for more on git add -p.
– Angelos Asonitis
Apr 7 '19 at 12:50
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How to hide columns in HTML table?
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You can use the nth-child CSS selector to hide a whole column:
#myTable tr > *:nth-child(2) {
display: none;
}
This works under assumption that a cell of column N (be it a th or td) is always the Nth child element of its row.
Here's a demo.
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Using HTML and Local Images Within UIWebView
... and file test.html) to your project by choosing Add Files to "MyProj" and selecting Create folder references. Now the following code will take care about all the referred images, css and javascript
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"WEB/test.html" ofType:nil];
[webView ...
Prevent screen rotation on Android
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Much better than the selected answer.
– Matej
Sep 25 '12 at 14:38
3
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How Can I Download a File from EC2 [closed]
...nager, click File ▸ Connect to Server.
Enter the server address, select the type of server, and enter any additional information as required. Then click Connect. Details on
server types are listed below.
For servers on the internet, you can usually use the domain name. For
computers ...
Git Push into Production (FTP)
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This script is rather clumsy about selecting 'last updated files'. Check out this fork for a more elegant solution.
– quickshiftin
Feb 4 '14 at 19:16
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Using Node.js only vs. using Node.js with Apache/Nginx
...pared to using a proper static file web server (Node may also be faster in select scenarios, but this is unlikely to be the norm). On top of files serving more efficiently, you won't have to worry about handling eTags or cache control headers the way you would if you were servings things out of Node...
Conditional HTML Attributes using Razor MVC3
...ou actually see:
style=""border:0px""
In Chrome, if you right-click and select Edit HTML, it switch back so you can see those nasty HTML character codes, making it clear you have real outer quotes, and HTML encoded inner quotes.
So the problem with trying to do the quoting yourself is Razor esca...
How can I change my Cygwin home folder after installation?
...nced >> Environment Variables >> User Variables for >> [select variable HOME] >> edit
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