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Why can't R's ifelse statements return vectors?

I've found R's ifelse statements to be pretty handy from time to time. For example: 9 Answers ...
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How to print a debug log?

I'd like to debug some PHP code, but I guess printing a log to screen or file is fine for me. 15 Answers ...
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Python timedelta in years

... from dateutil.relativedelta import relativedelta def yearsago(years, from_date=None): if from_date is None: from_date = datetime.now() return from_date - relativedelta(years=years) If you'd rather stick with the standard library, the answer is a little more complex:: from dateti...
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Is a URL allowed to contain a space?

... answered Jan 31 '09 at 1:32 Marc NovakowskiMarc Novakowski 41.3k1010 gold badges5353 silver badges6262 bronze badges ...
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How to get UTC timestamp in Ruby?

How to get UTC timestamp in Ruby? 9 Answers 9 ...
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How to navigate back to the last cursor position in Visual Studio?

What is the keyboard shortcut navigate back to the last cursor position in Visual Studio? 5 Answers ...
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How to make ReSharper re-evaluate its assembly reference highlighting

I am creating a Prism Project Template, and the template works great. But after I create a project with the template some of the files look like this: ...
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VS2013 permanent CPU usage even though in idle mode

I've recently updated VS2013 to Update 1 and since then VS takes CPU usage to 25% (on a 4 cores intel i5 cpu) permanently even though it's supposed to be idle. I thought it has some unfinished background processes so I left it running for a while but it keeps using the cpu when it's supposed to be i...
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Error installing libv8: ERROR: Failed to build gem native extension

... answered Mar 22 '14 at 15:32 Arman OrtegaArman Ortega 1,7852121 silver badges2525 bronze badges ...
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Checking if a variable is defined?

How can I check whether a variable is defined in Ruby? Is there an isset -type method available? 14 Answers ...