Method: Statsample::Anova::Contrast#standard_error

Defined in:
lib/statsample/anova/contrast.rb

#standard_error ⇒ Object Also known as: se 



52
53
54
55
56
57
 
# File 'lib/statsample/anova/contrast.rb', line 52

def standard_error
  sum=@vectors.size.times.inject(0) {|ac,i|
    ac+((@c[i].rationalize**2).quo(@vectors[i].size))
  } 
  Math.sqrt(@msw*sum)
end