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Friedman’s Nonparametric ANOVA

Select menu: Stats | Statistical Tests | Friedman’s Nonparametric ANOVA

The Friedman test is a non-parametric test for analyzing randomized complete block designs. That is, the data consists of observations on K treatments assessed under N different conditions (blocks).

  1. After you have imported your data, from the menu select 
    Stats | Statistical Tests | Friedman’s Nonparametric ANOVA.
  2. Fill in the fields as required then click Run.

After running, you can save the results by clicking Save.

Available data

List of variates and factors that can be used to supply the data, treatments and blocks. The contents will change as you move from one input field to another, so that appropriate types of data structure are listed. Double-click on a name to copy it into the input field, or type the name in directly.


Set this to the variate containing the data values.


Set this to a factor, which specifies the treatment for each unit.


Specifies the factor defining the different conditions or blocks.


Specifies which information to display when carrying out Friedman’s nonparametric test. If you select Test statistic the relevant test statistics will be displayed in the Output window. Similarly, if you select Ranks the ranks together with the blocks, treatments and data will be displayed in the Output window.

Action Icons

Pin Controls whether to keep the dialog open when you click Run. When the pin is down  the dialog will remain open, otherwise when the pin is up  the dialog will close.
Restore Restore names into edit fields and default settings.
Clear Clear all fields and list boxes.
Help Open the Help topic for this dialog.

See also

Updated on April 26, 2019

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