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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column

... Thanks, great, it works. I found nothing like this in the docs for 0.8.1... I suppose I should always think on Series as lists of tuples... – joaquin Sep 10 '12 at 17:28 ...
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Private vs Public in Cache-Control

...ps://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997...
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Rails 3: I want to list all paths defined in my rails application

... house9house9 19.2k88 gold badges4949 silver badges5757 bronze badges ...
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Remove leading or trailing spaces in an entire column of data

... and trailing spaces – kaushik Jan 18 '15 at 14:12 2 I would not expect this, and there may be so...
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How does “304 Not Modified” work exactly?

... edited Mar 29 '17 at 21:58 Tgsmith61591 4,94633 gold badges3131 silver badges5959 bronze badges answere...
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Regex lookahead for 'not followed by' in grep

... answered Feb 8 '12 at 18:08 Jonathan LefflerJonathan Leffler 641k111111 gold badges777777 silver badges11491149 bronze badges ...
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How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?

... edited Dec 22 '15 at 16:48 Dr. Person Person II 2,95544 gold badges2626 silver badges3333 bronze badges ...
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How can I alter a primary key constraint using SQL syntax?

... edited Jun 13 '13 at 11:58 Oleg Dok 19.3k22 gold badges4040 silver badges5353 bronze badges answered Ja...
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How to copy directories in OS X 10.7.3?

... George Stocker 53.8k2929 gold badges165165 silver badges230230 bronze badges answered Mar 20 '12 at 21:02 Andy FrieseAn...
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How to make Sequelize use singular table names

... 98 While the accepted answer is correct, you can do this once for all tables rather than having to ...