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How do I create test and train samples from one dataframe with pandas?
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I would just use numpy's randn:
In [11]: df = pd.DataFrame(np.random.randn(100, 2))
In [12]: msk = np.random.rand(len(df)) < 0.8
In [13]: train = df[msk]
In [14]: test = df[~msk]
And just to see this has worked:
In [15]: len(test)
Out[15]: 21
In [16]:...
Maven package/install without test (skip tests)
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21 Answers
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JS - get image width and height from the base64 code
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148
var i = new Image();
i.onload = function(){
alert( i.width+", "+i.height );
};
i.src = ima...
gulp globbing- how to watch everything below directory
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179
The pattern for all files under all directories is usually ./src/less/**/*.* or ./src/less/**/...
Why does 2 == [2] in JavaScript?
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You can look up the comparison algorithm in the ECMA-spec (relevant sections of ECMA-262, 3rd ...
Routing with Multiple Parameters using ASP.NET MVC
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edited Feb 11 '10 at 18:46
answered Feb 11 '10 at 18:03
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write a shell script to ssh to a remote machine and execute commands
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There are multiple remote linux machines, and I need to write a shell script which will exe...
What does gcc's ffast-math actually do?
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edited Aug 31 '18 at 13:29
Rakete1111
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Android View.getDrawingCache returns null, only null
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In Vim, I'd like to go back a word. The opposite of `w`
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edited Mar 17 '19 at 5:41
daaawx
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a...