大约有 48,000 项符合查询结果（耗时：0.0847秒） [XML]
Sample random rows in dataframe
...46
3 2.3343391 -0.4385071
4 -0.9040278 -0.6593677
5 0.4180331 -1.2592415
6 0.7572246 -0.5463655
7 -0.8996483 0.4231117
8 -1.0356774 -0.1640883
9 -0.3983045 0.7157506
10 -0.9060305 2.3234110
Then select some rows at random:
> df[sample(nrow(df), 3), ]
X1 X2
9 -0...
Text inset for UITextField?
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edited Sep 11 '15 at 9:43
kukushi
56855 silver badges2121 bronze badges
answered Oct 19 '10 a...
What is the result of % in Python?
...%6 which yields 2?
– wookie
Mar 27 '15 at 6:23
8
The first number is the numerator and the second...
How do I use jQuery's form.serialize but exclude empty fields
...ustrated in this fiddle.
– Noyo
Jul 15 '13 at 11:39
5
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Header files for x86 SIMD intrinsics
...ng you need.
– Paul R
Jun 27 '12 at 15:19
2
zmmintrin.h has the AVX-512 intrinsics.
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How to get index using LINQ? [duplicate]
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edited Dec 30 '16 at 7:15
Andrew Savinykh
21.2k1212 gold badges8383 silver badges138138 bronze badges
...
How do I detect IE 8 with jQuery?
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edited Jun 30 '13 at 15:50
answered Feb 4 '10 at 18:56
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How do I know which version of Javascript I'm using?
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edited Nov 3 '15 at 18:32
chris Frisina
17k1818 gold badges7171 silver badges148148 bronze badges
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Format floats with standard json module
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However you do this, use something like %.15g or %.12g instead of %.3f .
– Guido van Rossum
Mar 12 '13 at 21:04
23
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Resizing UITableView to fit content
...
157
Actually I found the answer myself.
I just create a new CGRect for the tableView.frame with t...