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Split a String into an array in Swift?
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edited Jul 13 '16 at 12:14
swiftBoy
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answe...
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...
Define variable to use with IN operator (T-SQL)
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14 Answers
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PostgreSQL create table if not exists
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answered Sep 15 '11 at 22:34
Erwin BrandstetterErwin Brandstetter
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Does pandas iterrows have performance issues?
...eductions that can be performed in cython
b) iteration in python space
4) itertuples
5) iterrows
6) updating an empty frame (e.g. using loc one-row-at-a-time)
Using a custom Cython routine is usually too complicated, so let's skip that for now.
1) Vectorization is ALWAYS, ALWAYS the first and...
Python division
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You're using Python 2.x, where integer divisions will truncate instead of becoming a floating p...
How to put space character into a string name in XML?
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Send string to stdin
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jm666jm666
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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)...
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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