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postgresql - sql - count of `true` values
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91
Cast the Boolean to an integer and sum.
SELECT count(*),sum(myCol::int);
You get 6,3.
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Workflow for statistical analysis and report writing
...ta each time you make a change to a subsequent step. Also, keeping my code compartmentalized like this means I can come back to a long forgotten project and quickly read load.R and work out what data I need to update, and then look at do.R to work out what analysis was performed.
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How to hide close button in WPF window?
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What does Maven Update Project do in Eclipse?
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I was hoping to hear specifically what maven commands and plugins were executed as well.
– Gray
Mar 24 '14 at 17:47
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ActionController::InvalidAuthenticityToken
...n :verify_authenticity_token
On pages which do caching.
As @toobulkeh commented this is not a vulnerability on :index, :show actions, but beware using this on :put, :post actions.
For example:
caches_page :index, :show
skip_before_filter :verify_authenticity_token, :only => [:index, :s...
Java Generate Random Number Between Two Given Values [duplicate]
...ange )
so the code would be :
int Random =10 + (int)(Math.random()*(91));
/* int Random = (min.value ) + (int)(Math.random()* ( Max - Min + 1));
*Where min is the smallest value You want to be the smallest number possible to
generate and Max is the biggest possible number to gen...
Autolayout - intrinsic size of UIButton does not include title insets
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Getting a better understanding of callback functions in JavaScript
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91
You should check if the callback exists, and is an executable function:
if (callback &&...
What is the difference between Forking and Cloning on GitHub?
...of the relationship between the two repositories, so you can visualize the commits and pulls between the two projects (and other forks).
You can still request that people pull from your cloned repository, even if you don't use fork -- but you'd have to deal with making it publicly available yoursel...