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Extracting specific columns from a data frame
I have an R data frame with 6 columns, and I want to create a new dataframe that only has three of the columns.
10 Answers
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How to apply `git diff` patch without Git installed?
...eated by git diff without git installed?
I have tried to use patch command but it always asks file name to patch.
5 Ans...
How to create an HTML button that acts like a link?
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Simple and nice. A fine solution. Add display: inline to the form to keep the button in the flow.
– Pekka
May 25 '10 at 16:44
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Create a new workspace in Eclipse
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I use File -> Switch Workspace -> Other... and type in my new workspace name.
(EDIT: Added the composite screen shot.)
Once in the new workspace, File -> Import... and under General choose "Existing Projects into Workspace. Press the Next button and then Browse ...
How do I skip an iteration of a `foreach` loop?
In Perl I can skip a foreach (or any loop) iteration with a next; command.
8 Answers
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Can clearInterval() be called inside setInterval()?
I have the code above and sometimes it is working, sometimes it is not. I am wondering if the clearInterval actually clear the timer?? because there is this monitor button that will only be disabled when it is in monitoring function. I have another clearInterval when an element called .outp...
Execute SQLite script
I start up sqlite3 version 3.7.7, unix 11.4.2 using this command:
5 Answers
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Get week of year in JavaScript like in PHP
...: Working with weeks.
Edit
Here is some code based on the links provided and that posted eariler by Dommer. It has been lightly tested against results at http://www.merlyn.demon.co.uk/js-date6.htm#YWD. Please test thoroughly, no guarantee provided.
Edit 2017
There was an issue with dates during ...
Are Duplicate HTTP Response Headers acceptable?
...ication about whether duplicate HTTP response headers are allowed by the standard, but I need to know if this will cause compatibility issues.
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What does 'var that = this;' mean in JavaScript?
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@El Ronnoco, but "He's got gray hair and a scraggly beard and his manner brings to mind a grumpy old man who yells at kids to get off of his lawn." - blogging.compendiumblog.com/blog/software-for-humans/0/0/… ;-p
– David Murdoch
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