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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]:...
java: HashMap not working
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cletuscletus
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TFS: Updating branch with changes from main
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How can I force a long string without any blank to be wrapped?
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Using %f with strftime() in Python to get microseconds
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183
You can use datetime's strftime function to get this. The problem is that time's strftime acce...
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...
Can you nest html forms?
...a page but they should not be nested.
From the html5 working draft:
4.10.3 The form element
Content model:
Flow content, but with no form element descendants.
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What is the “-d” in “npm -d install”?
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edited Mar 6 at 19:55
Martijn Pieters♦
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What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?
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Yes. CommandTimeout is how long a single command can take to complete. ConnectionTimeout is ho...
What's “this” in JavaScript onclick?
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answered May 29 '09 at 12:30
TM.TM.
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