Two way ANOVA

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About

ANOVA tests the hypothesis that the population means are equal. The total variance present is separated into independent components that may be attributed to one source or another. Two‑way analysis of variance analyses the data in relation to two classification criteria.

Requires

One classification specified as the Y variables set with a second classification specified as the rows of the dataset. The samples must be independent (this test does not handle repeat measures). No missing values are allowed in the data.

Feature

Where whole row is empty it is ignored.

Parameters

Two way ANOVA dialog

Variables

Select two or more Y variables (See Selecting multiple variables for details).

Options

Subtitle

Allows you to specify an optional subtitle which will be included in the statistical output.

Filters

Two way ANOVA dialog

Allows you to select rows for analysis based upon conditions in other variables (See Filtering datasets for details)

Buttons

?

Opens the help system for this dialog.

Dataset…

Sends the output from this analysis to a new OxonStat Dataset. See Dataset output for more details.

Print…

Sends the output from this analysis to a printer.

Cancel

Cancels the analysis and closes the dialog.

Screen…

Displays the output from this analysis in the Results window.

Sample output

OxonStat20:47, 12 Aug 2023

1st Factor:Weight_1 and Height
2nd Factor:Row 1 [Green] to Row 38 [Hall]
Subtitle:<none>
Statistic:Two Way ANOVA
Dataset:OxonStat Demo

Sum squaresdfMean SquareFp
Between Columns146441.61431146441.6143734.3324<0.0001
Between Rows12725.176837343.92371.72460.0233
Residual7378.593237199.4214
Total166545.384375