User`s guide

3 Fitting Data
3-38
The numerical fit results are shown below.
As expected, the fit results for
poly3 are reasonable because the generated data
is cubic. The 95% confidence bounds on the fitted coefficients indicate that they
are acceptably accurate. However, the 95% confidence bounds for
poly5
indicate that the fitted coefficients are not known accurately.
The goodness of fit statistics are shown below. By default, the adjusted
R-square and RMSE statistics are not displayed in the
Table of Fits. To
display these statistics, open the Table Options GUI by clicking the
Table
options
button. The statistics do not reveal a substantial difference between
the two equations.
The cubic fit coefficients are
accurately known.
The quintic fit coefficients
are not accurately known.
The statistics do not reveal a substantial
difference between the two equations.
Open the Table Options GUI and
select
Adj R-sq and RMSE.