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3
votes
1answer
104 views
Logistic regression algorithm in Ruby
I have been using R to calculate logistic regression with many independent variables for a Ruby on Rails web application. However, I can no longer import data from the database to R using RPostgreSQL. ...
1
vote
2answers
287 views
rb-libsvm - getting confidence of a prediction
I'm using rb-libsvm and the RBF kernel to make classifications. svm.predict(measurements) returns either -1.0 or 1.0. Is there a way to get a confidence for this ...
1
vote
3answers
396 views
Modeling a Poisson process with 10000 events per minute
I am trying to model a system that generates events modeled by a Poisson process.
I am using the following ruby code:
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2
votes
1answer
198 views
How to detect feature value combinations with outstanding win percentages
I am building ruby on rails (ActiveRecord) horse racing application. One of the features that I would like to include in the application is the ability to identify meaningful "Angles". For example, ...
7
votes
3answers
2k views
Ruby as a statistics workbench
This is also a question that relates very much to Python as a statistics workbench and excel as a statistics workbench. I know there is a huge discussion about Ruby versus Python but this is not the ...
