linearreg(x, y)
Returns a linear function which is the linear fit of the data in arrays x and y.
See also corrcoeff mean
Example
x= ( 1, 2, 3 )
1 2 3
y = ( 1, 7, 2 )
1 7 2
f = linearreg( x, y )
f(x) = 0.5000 * x + 2.3333