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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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Task/Multiple-regression/Ruby/multiple-regression-1.rb Normal file
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require 'matrix'
def regression_coefficients y, x
y = Matrix.column_vector y.map { |i| i.to_f }
x = Matrix.columns x.map { |xi| xi.map { |i| i.to_f }}
(x.t * x).inverse * x.t * y
end

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Task/Multiple-regression/Ruby/multiple-regression-2.rb Normal file
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puts regression_coefficients([1, 2, 3, 4, 5], [ [2, 1, 3, 4, 5] ])

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Task/Multiple-regression/Ruby/multiple-regression-3.rb Normal file
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puts regression_coefficients([3,4,5], [ [1,2,1], [1,1,2] ])