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In the shell, what does “ 2>&1 ” mean?

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How can I profile Python code line-by-line?

... 120 I believe that's what Robert Kern's line_profiler is intended for. From the link: File: pyst...
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Normalize data in pandas

...In [92]: df Out[92]: a b c d A -0.488816 0.863769 4.325608 -4.721202 B -11.937097 2.993993 -12.916784 -1.086236 C -5.569493 4.672679 -2.168464 -9.315900 D 8.892368 0.932785 4.535396 0.598124 In [93]: df_norm = (df - df.mean()) / (df.max() - df.min()...
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IntelliJ IDEA 13 uses Java 1.5 despite setting to 1.7

Despite specifying JDK 1.7 in all project settings (including in File -> Project Structure -> Project :: Project SDK ), the following error is produced by IntelliJ 13 when trying to compile some simple Java 7 code which does use the diamond operator: ...
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How to get device make and model on iOS?

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What's the difference between lapply and do.call?

... 127 There is a function called Map that may be similar to map in other languages: lapply returns...
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How do I find the duplicates in a list and create another list with them?

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What are the mathematical/computational principles behind this game?

... 150 Finite Projective Geometries The axioms of projective (plane) geometry are slightly differen...
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Difference between break and continue statement

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How to create multidimensional array

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