Non-Linear Optimization Review

The review for the Non-Linear Optimization procedure consists of an AutoSignal Graph containing both a Y and Y2 plot. The component functions are shown in the Y-axis plot. The Y2 plot contains the fitted curve and the data that were fitted. By default, the data points are colored by relation to the fit standard error.

Confidence Intervals

The Review graph offers the option of displaying Confidence and Prediction Intervals about the fitted curve.

The Set Confidence/Prediction Intervals, % Confidence button is used to set confidence interval type and percentage. The option opens a simple dialog where you can individually check Confidence Intervals and Prediction Intervals, and where you can select from 90% Confidence, 95% Confidence, and 99% Confidence.

The Show Confidence/Prediction Intervals button toggles the currently set intervals on and off.

Export

All AutoSignal Graphs have the means to export the graph image to the clipboard or file as various forms of bitmaps and metafiles. Also included is an option that copies to the clipboard in spreadsheet format all of the numeric information used to produce the graph.

The Export button is used specifically to create ASCII, Excel, Lotus 123, Quattro Pro, or SigmaPlot disk files. These files use a generated X data stream and contain columns for the individual components as well as the overall composite curve.

The Export Numeric Summary and Graph to RTF File option writes the numeric summary and fit graph to an RTF (Rich Text Format) file. RTF is the portable MS Word format. It can be imported by most Windows word processors as well as the Wordpad editor that ships with Windows. For MS Word users, the size of this file can be appreciably reduced by saving the file in the native DOC format. The numeric portion of the file is based upon the current settings in the Numeric Summary option. The text data will be written to portrait orientation pages. The graph uses the current settings and size of the fit graph, and is inserted as a windows metafile. The graph will always use a landscape orientation. Beyond a certain size, the graph will utilize a full landscape page.

Numeric

The Numeric button is used to display a full Numeric Summary. The report optionally includes fitted parameters, parameter statistics, an analysis of variance, and the fit details.

Data

The Data button opens a Data Summary which displays a point by point data summary for the fit with the X and Y value of each data point, the predicted value, the residual and %residual, the confidence limits, and the prediction limits.

Eval

The Eval button is used to perform a full-featured numeric evaluation of the non-linear fit. While the Evaluation procedure is active, all other Review processes are suspended.

Residuals

The Residuals button opens an AutoSignal Graph containing the residuals from the fit. The residuals are the difference between the data and fitted curve.