;+
; NAME:
; mse.pro
;
;
; PURPOSE:
; return the mean squared error of the inout residuls
;
;
; CATEGORY:
; Stats
;
;
; INPUTS:
; res: array of residuals
;
;
; OUTPUTS:
; mean squared error
;
;
; MODIFICATION HISTORY:
;
;       Tue Jan 22 13:22:44 2008, Brian Larsen
;		documented, written previously
;
;-
FUNCTION mse, res

; mse is sse/n-2
  mse = sse(res)/double((N_ELEMENTS(res)-2 ))

RETURN, mse
END