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How to sort a dataFrame in python pandas by two or more columns?
...of sort:
df.sort(['a', 'b'], ascending=[True, False])
For example:
In [11]: df1 = pd.DataFrame(np.random.randint(1, 5, (10,2)), columns=['a','b'])
In [12]: df1.sort(['a', 'b'], ascending=[True, False])
Out[12]:
a b
2 1 4
7 1 3
1 1 2
3 1 2
4 3 2
6 4 4
0 4 3
9 4 3
5 4 1
8 4...
Finding the PHP File (at run time) where a Class was Defined
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fdehanne
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answered Mar 10 '10 at 19:59
GordonGordon
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Rails Model find where not equal
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Community♦
111 silver badge
answered Sep 12 '11 at 17:54
Vikrant ChaudharyVikrant Chaudhary
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Connect to a heroku database with pgadmin
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araqnidaraqnid
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9
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How do I forward parameters to other command in bash script?
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Steve B.Steve B.
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How to get the tag HTML with JavaScript / jQuery?
...or more info on documentElement browser compatibility: stackoverflow.com/q/11391827/177710.
– Oliver
Apr 23 '14 at 20:46
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How to remove first 10 characters from a string?
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answered Aug 25 '11 at 7:40
V4VendettaV4Vendetta
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How to send commands when opening a tmux session inside another tmux session?
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edited Dec 16 '11 at 5:12
answered Dec 16 '11 at 5:05
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How do I get the n-th level parent of an element in jQuery?
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edited Dec 7 '11 at 23:49
answered Aug 17 '11 at 13:37
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How do I compile C++ with Clang?
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Kim GräsmanKim Gräsman
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