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How to get the first element of an array?

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Way to read first few lines for pandas dataframe

...ms to work. Using one of the standard large test files (988504479 bytes, 5344499 lines): In [1]: import pandas as pd In [2]: time z = pd.read_csv("P00000001-ALL.csv", nrows=20) CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s Wall time: 0.00 s In [3]: len(z) Out[3]: 20 In [4]: time z = pd.rea...
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What does !important mean in CSS?

... 413 It means, essentially, what it says; that 'this is important, ignore subsequent rules, and any u...
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How to get JSON objects value if its name contains dots?

... Russell LeggettRussell Leggett 7,77533 gold badges2727 silver badges4242 bronze badges add a comm...
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How to drop into REPL (Read, Eval, Print, Loop) from Python code

... answered Sep 8 '09 at 20:34 AlexAlex 1,91622 gold badges1616 silver badges2020 bronze badges ...
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ASP.NET MVC Razor Concatenation

... 3 I started with String.Format but prefer the syntax and brevity of your response, I'm marking it as my preferred answer. ...
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Get current controller in view

... 193 I have put this in my partial view: @HttpContext.Current.Request.RequestContext.RouteData.Value...
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How to get the source directory of a Bash script from within the script itself?

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How do I remove leading whitespace in Python?

... 324 The lstrip() method will remove leading whitespaces, newline and tab characters on a string be...
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How to limit UITableView row reordering to a section

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