GAUSS

        TELCAL\GAUSS  Xvar  Yvar [Wvar] [/GUESS Area Position Width] [/FIXED
    Afix Pfix Wfix]

    Fit a one dimensional Gaussian through the (Xvar,Yvar)  points.  An  op-
    tional  weight array (Wvar) may be given. Area, position and width first
    guess are given through the /GUESS option. Default first guess is 1. Us-
    er  may  impose a parameter through the logical variables Afix, Pfix and
    Wfix. All parameters are considered variable by default.