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Difference in months between two dates
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Speed up the loop operation in R
... accumulates something. (simple operation). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime.
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What does '
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edited Jun 23 '15 at 10:17
answered Jan 7 '10 at 13:09
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Is there a way to check if a file is in use?
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answered Jun 2 '09 at 1:20
ChrisWChrisW
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How can I pass command-line arguments to a Perl program?
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190
Depends on what you want to do. If you want to use the two arguments as input files, you can jus...
How do I create a comma-separated list from an array in PHP?
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edited Sep 28 '16 at 22:01
answered Mar 12 '10 at 19:24
r...
Inner text shadow with CSS
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105
Here's a little trick I discovered using the :before and :after pseudo-elements:
.depth {
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The quest for the Excel custom function tooltip
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I've post...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...key"]
[Edit 2]
The new ObjC literals were discussed in multiple WWDC 2012 sessions. I intentionally didn't remove the the filenames and the time of each slide so you can find them for yourself if you feel like. They are essentially the same thing as stated in this post, but there are also a fe...
How to configure an existing git repo to be shared by a UNIX group
...Boyd Smith
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answered Jul 13 '10 at 23:34
David UnderhillDavid Underhill
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