Full Changelog

12.0.8 released March 9, 2020

  • Fixed a crash when ignoring categoric factors with no data.
  • Values smaller than 3.0E-12 can now be used for factor low and high settings.
  • Fixed missing legend in contour plot with binary data.

12.0.7 released January 23, 2020

  • Changes made to the histogram axes are now saved with the design file.
  • Factor and response names can now be toggled on in the graph legend, via the right-click menu.
  • Axis settings will now restore correctly when loading a file saved with the comma decimal separator.
  • Fixed an issue that was causing 2FI process terms to always be selected in certain combined designs.
  • Fixed a crash that would occur in the diagnostics node when using an overspecified model with logistic regression.

12.0.6 released December 20, 2019

  • Fixed incompatibility with macOS Sierra and earlier.
  • Fixed crash when analyzing a Simple Sample design with binomial data.
  • Fixed crash selecting a term for the DFBETAS plot using the enter key.

12.0.5 released December 11, 2019

  • Fixed crash when inserting a response.
  • Fixed a bug preventing copying to the clipboard in macOS.
  • Design Wizard font is now white when in Dark Mode on macOS.
  • The “Equal To” criteria setting should now display properly with discrete factors.
  • The contour value list in the Edit Contour menu now updates when the default button is pressed.
  • The alias report now shows block aliases when building a blocked factorial design.
  • Pasting data from Excel in macOS no longer inserts unwanted blank lines.

12.0.4 released November 21, 2019

  • Added support for Dark Mode in macOS.
  • Resized dropdown lists that were too small in macOS.
  • Contour labels are now draggable.
  • Removed unnecessary information from the Box-Cox legend.
  • Categoric level names are now shown on the Residuals vs Factor plot.
  • Removed the option to delete criteria contours from the Graphical Optimization graph.
  • Fixed a bug where the Cube plot would show incorrect observed values in certain situations.
  • Long factor names are now truncated in the graph legends.
  • You can now copy the Effects table to the clipboard.
  • The navigation pane will no longer scroll up when analyzing a response.
  • Fixed a crash in the Histogram plot when there are no response data.
  • Fixed a crash that occurred when cancelling an augment.
  • Fixed a crash when entering an invalid response equation.

12.0.3 released September 11, 2019

  • Histogram bin settings are now stored for each column plotted.
  • Model Graphs will now start on the previously selected graph (if any).
  • The evaluation correlation matrices now have a legend that updates when clicking on a cell.
  • Fixed erroneous warning when building certain RSM designs.
  • Evaluation graph settings are now saved with the file.
  • The design layout will no longer scroll to the top every time it is displayed.
  • Fixed crash in logistic regression after editing a discrete level.
  • Categorical factors with one or more levels ignored will now show up properly in Graph Columns.
  • Fixed display of the level grid when editing a discrete numeric.
  • Fixed crash when deleting criteria contours in Graphical Optimization.
  • Fixed crash rebuilding a design in which all categorical factors have been changed to discrete numerics.
  • Fixed crash when changing a Cube plot to Observed values, then using the Pop-out function.

12.0.2 released August 21, 2019

  • Removed KCV model from designs where it was not applicable.
  • The graph selection toolbar will now be more compact for smaller resolutions.
  • When a toolbar is undocked the close button will now toggle the toolbar off.
  • Fixed the coloring of the standard error gradient in the legend.
  • Adjusted size and position of graph elements when exported to bitmap or enhanced metafile to better match the on-screen graph.
  • Legend position and toggled legend items are now saved with the file.

12.0.1 released July 19, 2019

  • Initial macOS release.
  • The legend will now dock in the nearest corner.
  • Fixed colors in legend when coloring by > 2 categories in the 3d scatterplot.
  • Removed Pearson’s chi-squared value from logistic regression fit statistics.
  • Fixed display of high order terms in model selection log.
  • The curvature term will no longer appear when analyzing a response where an entire factor has been left out of the model.

12.0.0 released July 1, 2019

Logistic Regression

  • Responses with binary data will have a Logistic Regression option on the Transform tab.
  • Chi-squared tests for logistic regression model term significance.
  • McFadden, Adj. McFadden, and Tjur pseudo-R-squared statistics are available for logistic regression.
  • Binary responses can be optimized using criteria based on the probability of success or failure.


  • Model Graphs have been moved to a notebook interface.
  • You can create multiple graphs simultaneously in side by side views.
  • All graphs now have a dockable legend that can be moved independently of the graph.
  • The legend can also be docked to the right or bottom of the graph via the right-click menu.
  • Elements in the legend can be toggled individually via the right-click menu.
  • The font size of the legend can be increased or decreased by hovering over it, holding control, and using the mouse scroll wheel.
  • A histogram of any column of data can be generated in the Graph Columns node.
  • You can set a third axis on the Graph Columns scatterplot to make it into a 3d scatterplot.
  • Effects graphs have been moved to a notebook interface and can be compared side by side.
  • The Cube plot can now be toggled between observed and predicted values.
  • Pairwise comparisons when clicking on a point in Interaction or One Factor plots are now available in a separate toolbox.

Categoric Coding

  • Categoric variables can now use Helmert contrasts, which compares each level to the mean of the remaining levels.
  • Treatment contrasts are also available, which compares each level to a user-selected control, or reference level.
  • Ordinal contrasts no longer need to be numeric. If they are not numeric they are assumed to be evenly-spaced (e.g. “Low”, “Medium”, “High”).
  • The choice of contrast types for categoric factors is shown in the ANOVA.

Combined Models

  • Kowalski-Cornell-Vining (KCV) models are available as a Model Order choice.
  • KCV models provide a more efficient alternative to a full crossed model when building.
  • KCV models can be selected during the analysis as well.

Bug Fixes

  • Fixed graphical corruption that would sometimes appear on contour plots when Banded shading is selected.
  • The 3d Surface graph title is now editable.
  • Fixed incorrect coloring of symbols in the legend when verification points present.
  • Areas of the contour and 3d plot that are invalid due to an impossible reverse transformation (e.g. sqrt of predictions < 0) are no longer colored.
  • You can now change the font size in the simulation editor, via the Dialog Control font preference.
  • The factors tool now appears in optimization graphs for single factor designs.