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Selecting the last value of a column
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edited Nov 18 '10 at 21:57
answered Nov 18 '10 at 19:37
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PHP + MySQL transactions examples
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answered Apr 25 '10 at 12:49
Pascal MARTINPascal MARTIN
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How to randomly sort (scramble) an array in Ruby?
...by 1.8.7 too.
– Brian Armstrong
Aug 10 '10 at 22:08
That's utterly awesome.
– sidney
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How to succinctly write a formula with many variables from a data frame?
...e listed on the left hand side?
– stackoverflowuser2010
Feb 3 '14 at 4:17
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
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This takes the last. Not the maximum though:
In [10]: df.drop_duplicates(subset='A', keep="last")
Out[10]:
A B
1 1 20
3 2 40
4 3 10
You can do also something like:
In [12]: df.groupby('A', group_keys=False).apply(lambda x: x.loc[x.B.idxmax()])
Out[12]:
A ...
When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
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edited Jun 30 '10 at 14:33
Tom H
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an...
How can I select item with class within a DIV?
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Rakib
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answered Aug 3 '11 at 21:52
David says reinstate...
How to securely store access token and secret in Android?
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edited Jun 10 at 8:04
CoolMind
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Get contentEditable caret index position
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10 Answers
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How to delete object from array inside foreach loop?
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answered Feb 21 '10 at 2:56
prodigitalsonprodigitalson
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