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Python Pandas merge only certain columns
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edited Oct 27 '15 at 7:05
beroe
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answered Jul ...
How to validate an email address using a regular expression?
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+50
The fully RFC 822 compliant regex is inefficient and obscure because of its length. Fortunately, RFC 822 was superseded twice and the...
Best way to store date/time in mongodb
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201
The best way is to store native JavaScript Date objects, which map onto BSON native Date object...
How to calculate time in hours between two dates in iOS
...enDates = [date1 timeIntervalSinceDate:date2];
double secondsInAnHour = 3600;
NSInteger hoursBetweenDates = distanceBetweenDates / secondsInAnHour;
See, the apple reference library http://developer.apple.com/library/mac/navigation/
or if you are using Xcode just select help/documentation from th...
How to check the version before installing a package using apt-get?
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10 Answers
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Active
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How to reset radiobuttons in jQuery so that none is checked
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270
In versions of jQuery before 1.6 use:
$('input[name="correctAnswer"]').attr('checked', false);
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“Too many values to unpack” Exception
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answered Sep 25 '09 at 22:13
Stefano BoriniStefano Borini
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Return first match of Ruby regex
...Name[/regular expression/]. This is an example output from irb:
irb(main):003:0> names = "erik kalle johan anders erik kalle johan anders"
=> "erik kalle johan anders erik kalle johan anders"
irb(main):004:0> names[/kalle/]
=> "kalle"
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jQuery append() - return appended elements
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Jeroen
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answered Jan 29 '10 at 1:49
SLaksSLaks
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Convert number strings with commas in pandas DataFrame to float
...e step.
You need to set the locale first:
In [ 9]: import locale
In [10]: from locale import atof
In [11]: locale.setlocale(locale.LC_NUMERIC, '')
Out[11]: 'en_GB.UTF-8'
In [12]: df.applymap(atof)
Out[12]:
0 1
0 1200 4200.00
1 7000 -0.03
2 5 0.00
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