MFIT /STEP
Keywords: sic

Next: MODIFY Up: MFIT Previous: MFIT /START Contents Index

###
MFIT /STEP

              [SIC\]MFIT Y=f(X,&a,...) /STEP A2 B2 ...

        A2 B2 ... are used to pass the unity vectors (steps) for  the  iteration
        on  parameters  &A  &B (defaulted to 0.25). Poor choice of initial steps
        may lead to non convergence. Too small steps will  not  help  converging
        when  one  starts too far from the solution. Too large steps may lead to
        incorrect evaluation of the parameter errors. The optimal step  for  the
        determination  of the errors is about the error bar, so that all parame-
        ters become dimensionless.