Kruskal-Wallis One-way ANOVA

Select menu: Stats | Statistical Tests | Kruskal-Wallis One-way ANOVA

Use this to perform a Kruskal-Wallis one-way analysis of variance on the ranks (relative to the whole data set) of a set of samples. The samples can be supplied in two ways: either as a list of variates, or one variate with the groups specified using a factor.

1. After you have imported your data, from the menu select 
   Stats | Statistical Tests | Kruskal-Wallis One-way ANOVA.
2. Fill in the fields as required then click Run.

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

Data arrangement

You can supply the data either as a list of variates or as a single variate with a factor defining the groups.

List of variates	Enter the samples as a list of variates in the List of variates field
One variate with group factor	You must supply the data in one variate, specified as the variate. Membership of the different samples is then indicated by the Group factor

Display

Specifies information to be displayed when carrying out the Kruskal-Wallis one-way ANOVA. If Tests is selected then the relevant test statistics will be displayed in the Output window. Similarly, if Ranks is selected then the ranks for each sample relative to the whole data set will be displayed in the Output window.

Available data

List variates and factors that can be used to supply the data sets and groups. The contents may 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.

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

• KRUSKAL procedure
• Save Options