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pandas: filter rows of DataFrame with operator chaining
...DataFrame.mask = mask
In [93]: df = pandas.DataFrame(np.random.randint(0, 10, (4,4)), index=list('abcd'), columns=list('ABCD'))
In [95]: df.ix['d','A'] = df.ix['a', 'A']
In [96]: df
Out[96]:
A B C D
a 1 4 9 1
b 4 5 0 2
c 5 5 1 0
d 1 3 9 6
In [97]: df.mask('A', 1)
Out[97]:
...
AngularJS : What is a factory?
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bytisebytise
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MySQL vs MongoDB 1000 reads
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@ariso: This is optimisation by denormalisation. It can provide a performance boost. However, if you do this, then you're throwing away yo...
How can I get Knockout JS to data-bind on keypress instead of lost-focus?
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answered Dec 8 '10 at 19:25
Sergei GolosSergei Golos
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git submodule tracking latest
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Insert a line at specific line number with sed or awk
...d then use this with gsed
– cwd
Jan 10 '15 at 17:58
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This is super useful! Is there anyway for m...
Downcasting shared_ptr to shared_ptr?
...n.
– Massood Khaari
Jan 27 '13 at 9:10
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Reading GHC Core
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How does _gaq.push(['_trackPageLoadTime']) work?
...2% of pageviews, though it is configured to try to track all page loads on 10% of visits; as more browsers support the NavigationTiming API, you can expect the total sampled percentage to begin to get closer to 10%.)
This interface is accessed under the DOM object window.performance (or, in earlier...
Converting Go struct to JSON
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answered Jul 30 '15 at 15:12
Manohar Reddy PoreddyManohar Re...