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Run R script from command line
...ou really want to use the ./a.R way of calling the script you could add an appropriate #! to the top of the script
#!/usr/bin/env Rscript
sayHello <- function(){
print('hello')
}
sayHello()
I will also note that if you're running on a *unix system there is the useful littler package which ...
href image link download on click
..."/path/to/image"><img src="/path/to/image" /></a> in a web app.
10 Answers
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Set title background color
In my android application I want the standard/basic title bar to change color.
13 Answers
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Rails: Adding an index after adding column
Suppose I created a table table in a Rails app. Some time later, I add a column running:
5 Answers
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How to calculate the running time of my program? [duplicate]
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What is happening between the two calls to nanoTime has absolutely no impact.
– krtek
Aug 18 '15 at 12:06
10
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Fragments onResume from back stack
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This doesn't appear to work with app compat fragments.
– Lo-Tan
May 22 '15 at 5:05
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Could not insert new outlet connection [duplicate]
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Removing(removing reference, not deleting) and then adding the appropriate file(the file of class you want to add the outlet to) is actually enough.
Edit 1 I found that after unchecking (in XCode 6.3.1) I had to wait a few seconds for the Indexing to appear and complete in the project n...
Match linebreaks - \n or \r\n?
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This only applies to question 1.
I have an app that runs on Windows and uses a multi-line MFC editor box.
The editor box expects CRLF linebreaks, but I need to parse the text enterred
with some really big/nasty regexs'.
I didn't wa...
ScrollIntoView() causing the whole page to move
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This resolved my issue. I've been seeing this happen in our web app for some time, but it's been hard to lock down the repro for it. After adding a new feature it occurred every time and I was able to trace it to this call, which was missing the block : 'nearest' param.
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How to convert a double to long without casting?
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Assuming you're happy with truncating towards zero, just cast:
double d = 1234.56;
long x = (long) d; // x = 1234
This will be faster than going via the wrapper classes - and more importantly, it's more readable. Now, if you need rounding ...