+ fprintf (fp, "/*\n Estimate the mean of Y, the dependent variable for\n");
+ fprintf (fp, " the linear model of the form \n\n");
+ fprintf (fp, " Y = b0 + b1 * X1 + b2 * X2 + ... + bk * X2 + error\n\n");
+ fprintf (fp, " where X1, ..., Xk are the independent variables\n");
+ fprintf (fp, " whose values are stored in var_vals and whose names, \n");
+ fprintf (fp, " as known by PSPP, are stored in var_names. The estimated \n");
+ fprintf (fp, " regression coefficients (i.e., the estimates of b0,...,bk) \n");
+ fprintf (fp, " are stored in model_coeffs.\n*/\n");