大约有 47,000 项符合查询结果（耗时：0.0692秒） [XML]
Scatter plot and Color mapping in Python
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wflynnywflynny
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Git: Set up a fetch-only remote?
...Daniel Brockman
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How do negated patterns work in .gitignore?
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CascabelCascabel
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Creating hidden arguments with Python argparse
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srgergsrgerg
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What do pty and tty mean?
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edited Jul 12 '18 at 9:40
JohnGH
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answered Dec 13 '10 at ...
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 ...
How can I represent an infinite number in Python?
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8 Answers
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How do I output coloured text to a Linux terminal?
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edited Jul 18 at 19:56
Dinei
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Regular Expression to get a string between parentheses in Javascript
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edited Oct 15 '18 at 6:46
user1063287
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