bruce
/ parallel_regression.ex
Last active
December 22, 2015 23:19
— forked from benwilson512/parallel regression
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| # http://en.wikipedia.org/wiki/Simple_linear_regression | |
| # Exchange.Calc.Regression.run([{1,1},{2,2},{3,3}]) | |
| defrecord Exchange.Calc.Regression.Result, products_avg: nil, x_avg: nil, y_avg: nil, x_sqr_avg: nil do | |
| def complete?(result) do | |
| result.products_avg && result.x_avg && result.y_avg && result.x_sqr_avg | |
| end | |
| end |
bruce
/ app-controllers-images_controller.rb
Created
January 4, 2012 21:00
— forked from jathayde/app-controllers-images_controller.rb
Trying to figure out polymorphic association with image to other items
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| def new | |
| @image = Image.new | |
| respond_with @image | |
| end |
bruce
/ gist:257326
Created
December 15, 2009 21:29
— forked from mperham/gist:257316
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| def exists?(attribs) | |
| CustomImage.find_by_account_id_and_hash(attribs['account_id'], attribs['id']) | |
| end | |
| # Memoize using <tt>defined?</tt> | |
| def some_method(attribs) | |
| return @some_method if defined?(@some_method) | |
| @some_method = exists?(attribs) | |
| end |