Help .... F1

Displays this Help page: F1 is the short-cut key

Finish iterating of current action .... Ctrl+F

Completes estimation at the end of the current iteration. If estimation does not seem to be converging, or is converged enough for your purposes. This can also be used to finish some other long processes.

Bigger changes between iterations F2

Increases the size of the changes during estimation. If the maximum residual does not decrease noticeably per iteration, Use the pull-down Estimation menu, and select "Bigger" changes, or press the F2 key.

Reduce changes between iterations F2

Decreases the size of the changes during estimation. If the maximum residual oscillates between large positive and negative values, Use the pull-down Estimation menu, and select "Reduce" changes, or press the F3 key.

Query: Show next match F4

When Query=Yes, this jumps to the next observation to be matched to a Models= specification.

Query=No: quit data display F6

This suppresses reporting of data matching

Query=Yes: activate data display F6

This shows diagnostic information about the matching of data to models. It enables you to check how your data are being matched to your Models= specifications.

Newton-Raphson = (value)

The current setting of Newton=.  Newton = 0 for iterative curve fitting.