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How to reorder data.table columns (without copying)

I'd like to reorder columns in my data.table x , given a character vector of column names, neworder : 2 Answers ...
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Full Page

I have the example code below. This works fine with all browsers except for browsers on mobile devices. 5 Answers ...
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Most efficient way to reverse a numpy array

Believe it or not, after profiling my current code, the repetitive operation of numpy array reversion ate a giant chunk of the running time. What I have right now is the common view-based method: ...
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Check if an element's content is overflowing?

What's the easiest way to detect if an element has been overflowed? 14 Answers 14 ...
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How do Trigonometric functions work?

So in high school math, and probably college, we are taught how to use trig functions, what they do, and what kinds of problems they solve. But they have always been presented to me as a black box. If you need the Sine or Cosine of something, you hit the sin or cos button on your calculator and you'...
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What's the best way to get the last element of an array without deleting it?

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How to run cron job every 2 hours

How can I write a Crontab that will run my /home/username/test.sh script every 2 hours? 5 Answers ...
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How does a UILabel's minimumScaleFactor work?

I have used minimumFontSize before but that function is now deprecated and i don't quite understand how minimumScaleFactor works. ...
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Replacing column values in a pandas DataFrame

I'm trying to replace the values in one column of a dataframe. The column ('female') only contains the values 'female' and 'male'. ...
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What is the default value for enum variable?

An enum variable, anyone know if it is always defaulting to the first element? 2 Answers ...