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How to randomize (or permute) a dataframe rowwise and columnwise?
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234
Given the R data.frame:
> df1
a b c
1 1 1 0
2 1 0 0
3 0 1 0
4 0 0 0
Shuffle row-wise:
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How to change legend title in ggplot
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367
This should work:
p <- ggplot(df, aes(x=rating, fill=cond)) +
geom_density(alp...
Passing arguments forward to another javascript function
...nts);
}
function b(){
alert(arguments); //arguments[0] = 1, etc
}
a(1,2,3);
You can test it out here.
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Python: Why is functools.partial necessary?
...er having accepted it into Python whereas planned to remove it from Python 3, as one of "Python's glitches".
I fully supported him in that. (I love lambda in Scheme... while its limitations in Python, and the weird way it just doesn't fit in with the rest of the language, make my skin crawl).
Not ...
VSS使用指南 - 开源 & Github - 清泛网 - 专注IT技能提升
...代码的再使用—— 追踪程序基准使得代码可重用。
1.1.3 文件的拆分和共享
在VSS中可以实现一个文件被多个项目共享(share)。在一个项目中对文件的改动可以自动反映到其他共享的项目中去。这正提倡了代码重用。在file菜单中...
How do I read text from the (windows) clipboard from python?
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You can use the module called win32clipboard, which is part of pywin32.
Here is an example that first sets the clipboard data then gets it:
import win32clipboard
# set clipboard data
win32clipboard.OpenClipboard()
win32clipboard.EmptyClipboard()
win32clip...
How to hash a string into 8 digits?
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answered Apr 15 '13 at 6:17
Raymond HettingerRaymond Hettinger
168k5151 gold badges299299 silver badges388388 bronze badges
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What does the star operator mean, in a function call?
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932
The single star * unpacks the sequence/collection into positional arguments, so you can do this...
In PyCharm, how to go back to last location?
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Under ArchLinux with PyCharm CE 3.1 works the combination Ctrl + Alt + Left.
This is the way I find out the combination:
(Right click) Go To -> Implementation(s)
Double Shift -> Back
There is an option Back in the section Actions
Ctrl + Shift + A
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How to re-raise an exception in nested try/except blocks?
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132
As of Python 3 the traceback is stored in the exception, so a simple raise e will do the (mostl...