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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?

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How to use R's ellipsis feature when writing your own function?

... 115 I read answers and comments and I see that few things weren't mentioned: data.frame uses lis...
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How to build a Debian/Ubuntu package from source?

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What is the difference between float and double?

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Replace a character at a specific index in a string?

... | edited Jul 21 '12 at 2:25 waldyr.ar 11.7k66 gold badges2727 silver badges6363 bronze badges ...
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Replace a value in a data frame based on a conditional (`if`) statement

... 221 Easier to convert nm to characters and then make the change: junk$nm <- as.character(junk$nm...
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Backbone View: Inherit and extend events from parent

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What's the difference between %s and %d in Python string formatting?

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RegEx: Grabbing values between quotation marks

...'ve been using the following with great success: (["'])(?:(?=(\\?))\2.)*?\1 It supports nested quotes as well. For those who want a deeper explanation of how this works, here's an explanation from user ephemient: ([""']) match a quote; ((?=(\\?))\2.) if backslash exists, gobble it, and wheth...
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Adjust width and height of iframe to fit with content in it

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