大约有 38,375 项符合查询结果（耗时：0.0500秒） [XML]
Redirecting stdout to “nothing” in python
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answered Jul 18 '11 at 16:16
Andrew ClarkAndrew Clark
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How to sort a dataframe by multiple column(s)
...; dd[with(dd, order(-z, b)), ]
b x y z
4 Low C 9 2
2 Med D 3 1
1 Hi A 8 1
3 Hi A 9 1
Edit some 2+ years later: It was just asked how to do this by column index. The answer is to simply pass the desired sorting column(s) to the order() function:
R> dd[order(-dd[,4], dd[,1]), ]
b x y ...
Control the size of points in an R scatterplot?
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answered Apr 5 '10 at 18:16
rcsrcs
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gunicorn autoreload on source change
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Martlark
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answered Jul 22 '14 at 16:40
Dmitry ZiolkovskiyDmitry Ziolkovsk...
Android Studio - Ambiguous method call getClass()
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danielcooperxyz
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answered Aug 29 '13 at 8:53
Ritesh GuneRitesh Gu...
Most simple but complete CMake example
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j0h
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answered Oct 12 '15 at 21:50
ArneArne
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JQuery .each() backwards
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689
$($("li").get().reverse()).each(function() { /* ... */ });
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Purpose of #!/usr/bin/python3
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268
#!/usr/bin/python3 is a shebang line.
A shebang line defines where the interpreter is located. ...
How can I make setuptools install a package that's not on PyPI?
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PJ EbyPJ Eby
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