class Rust::Correlation::Pearson

Public Class Methods

estimate(d1, d2) click to toggle source
# File lib/rust-basics.rb, line 26
def self.estimate(d1, d2)
    self.test(d1, d2).correlation
end
test(d1, d2) click to toggle source
# File lib/rust-basics.rb, line 5
def self.test(d1, d2)
    raise TypeError, "Expecting Array of numerics" if !d1.is_a?(Array) || !d1.all? { |e| e.is_a?(Numeric) }
    raise TypeError, "Expecting Array of numerics" if !d2.is_a?(Array) || !d2.all? { |e| e.is_a?(Numeric) }
    
    Rust.exclusive do
        Rust['correlation.a'] = d1
        Rust['correlation.b'] = d2
        
        _, warnings = Rust._eval("correlation.result <- cor.test(correlation.a, correlation.b, method='p')", true)
        
        result = Result.new
        result.name             = "Pearson's product-moment correlation"
        result.statistics['t']  = Rust._pull('correlation.result$statistic')
        result.pvalue           = Rust._pull('correlation.result$p.value')
        result.correlation      = Rust._pull('correlation.result$estimate')
        result.exact            = !warnings.include?("Cannot compute exact p-value with ties")
        
        return result
    end
end