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Normalize data in pandas
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In [92]: df
Out[92]:
a b c d
A -0.488816 0.863769 4.325608 -4.721202
B -11.937097 2.993993 -12.916784 -1.086236
C -5.569493 4.672679 -2.168464 -9.315900
D 8.892368 0.932785 4.535396 0.598124
In [93]: df_norm = (df - df.mean()) / (df.max() - df.m...
PostgreSQL create table if not exists
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answered Sep 15 '11 at 22:34
Erwin BrandstetterErwin Brandstetter
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Define variable to use with IN operator (T-SQL)
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Send string to stdin
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jm666jm666
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define() vs. const
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edited Apr 9 at 17:41
Bart Kuijper
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answered Jul 7 '10 at 9:59
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Python division
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246
You're using Python 2.x, where integer divisions will truncate instead of becoming a floating p...
How to concatenate items in a list to a single string?
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1144
Use join:
>>> sentence = ['this','is','a','sentence']
>>> '-'.join(sentence)...
How to put space character into a string name in XML?
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Good example of livelock?
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edited Sep 30 '15 at 17:42
answered Jan 14 '12 at 16:45
J...
How can I get last characters of a string
... Jamon HolmgrenJamon Holmgren
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