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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
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edited Jun 16 '19 at 18:52
answered Feb 15 '12 at 0:25
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GMSGroundOverlay animating - should I be using a CATiledLayer?
I am experimenting with the Google Maps for iOS SDK latest version 1.2.1.2944 to animate a GMSGroundOverlay . The user has control over the image sequence, so using an animated UIImage isn't a possibility sadly, so i'm loading in the UIImage on the fly. The GMSGroundOverlay.icon is set to the...
javascript find and remove object in array based on key value
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git ignore all files of a certain type, except those in a specific subfolder
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Install parent POM without building Child modules
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Use the '-N' option in the mvn command.
From mvn -h:
-N,--non-recursive ...
How would one call std::forward on all arguments in a variadic function?
...g the boost preprocessor meta-library to make a variadic template (using 2010 and it doesn't support them). My function uses rval references and std::forward to do perfect forwarding and it got me thinking...when C++0X comes out and I had a standard compiler I would do this with real variadic temp...
How can I get the font size and font name of a UILabel?
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edited Jun 1 '14 at 20:46
answered Feb 1 '11 at 19:04
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How to calculate cumulative normal distribution?
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Here's an example:
>>> from scipy.stats import norm
>>> norm.cdf(1.96)
0.97...
How to remove debugging from an Express app?
...rom socket.io. You can disable this by configuration:
io.set('log level', 1); // reduce logging
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Applying function with multiple arguments to create a new pandas column
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141
Alternatively, you can use numpy underlying function:
>>> import numpy as np
>>...