Last update : 12/01/2004

regress - regression coefficients of two variables

### Calling Sequence

  `coefs=regress(x,y)`

### Parameters

- `x,y`: real or complex vector

### Description

This function computes the regresion coefficients of two variables `x` and `y`, both numerical vectors of same number of elements `n`. `coefs=[a b]` be a 1x2 matrix such that `Y=a+bX` will be the equation of the ordinary least square approximation to our data.

### References

Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, J.Wiley & Sons, 1990.

### Examples

    x=[0.5608486 0.6623569 0.7263507 0.1985144 0.5442573 0.2320748 0.2312237]
    y=[0.3616361 0.2922267 0.5664249 0.4826472 0.3321719 0.5935095 0.5015342]
    coefs=regress(x,y)

### See Also

`covar`,

### Author

Carlos Klimann