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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...
Check if a string contains another string
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MakahMakah
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Why doesn't Java allow generic subclasses of Throwable?
...ys use raw types".
– Archie
Apr 19 '11 at 16:39
3
They could just disallow using two catch blocks...
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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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♦
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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 compile C++ with Clang?
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Kim GräsmanKim Gräsman
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Why am I getting an Exception with the message “Invalid setup on a non-virtual (overridable in VB) m
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AmolAmol
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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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