The latest release has many of the features I have been wanting to add for a long time. In particular, there are more support charts to help users decide if a particular analysis is appropriate. If you run an ANOVA, for example, how normal are all the distributions for the subgroups? And what about variability? SOFA Statistics provides visual assistance for deciding (e.g. histograms with superimposed normal distribution curves) alongside the numerical results of appropriate tests (e.g. the O’Brien homogeneity of variance test). Instead of expecting the user to know the separate steps they ought to take, SOFA Statistics bundles them up together and tries to provide guidance and interpretation. Which is arguably how it should be. For example, how can a user properly interpret an R result from a correlation without a scatterplot? Many users won’t have studied statistics formally for a long time (if at all) and it is easy to be uncertain about exactly what all the rules are.
Re: portable output, SOFA Statistics reports are designed for viewing in web browsers (e.g. Firefox). Now that these reports include images it has become important to make sure they are easily portable. To that end, all internal links to images are relative. This means you can copy a report and the subfolder of its images (sharing the name of the report) anywhere and have the report work properly. It has never been easier to share the results of your analyses.
Here is a full list of the changes:
- ANOVA output now includes histograms for each sample with superimposed normal distribution curves. It also shows kurtosis, skew, and an omnibus measure of normality for each sample as well as the O’Brien homogeneity of variance test. Explanatory footnotes have been added to the output.
Histograms for subgroups of ANOVA
- Spearman’s and Pearson’s correlation output now includes scatterplots and lines of best fit.
Scatterplot for assessing linear correlation
- All html reports are portable along with their images (stored in a subfolder of the same name).
- When titles/subtitles are being changed, the rest of the example report table stays the same. This removes an annoying “flicker” effect when typing in titles/subtitles.
- The redundant Clear button has been removed from Statistical Test dialogs.
- An hourglass displays when opening statistics tests and report tables for the first time in case of a brief delay on first use.
There have also been some important and edge-case bug fixes:
- All images are now uniquely named and stored in report-name-based subfolders if “added to report” has been selected, or in the internal folder otherwise. This guarantees the correct images will always be displayed and that saved HTML reports will work.
- The page break in independent t-test output has been repositioned to below the histograms.
- Changing to raw data display, and then changing table source, no longer prevents the example table from displaying.
Internal footnotes in expanded output now work for Windows users.