How to request Least squares means with Standard errors in one-way ANOVA?
Article ID: KB0074333
Updated On:
| Products | Versions |
|---|---|
| Spotfire Statistica | 13.0 and higher |
Description
This example uses the rats data to demonstrate how to request least squares means with ± standard errors in one-way ANOVA. The default gives confidence intervals instead.
Environment
Resolution
1.Select File|Open Examples to navigate to the "Datasets" folder
2.Select Rats.sta data and click "Open" in the "Open a STATISTICA Data File" dialog
3.Select Statistics|ANOVA(in Base group)
4.Select "One-Way ANOVA" in the "General ANOVA/MANOVA:Rats.sta" dialog and click "OK"
5.Click "Variables" to select Dependent Variables(ERRORS) and Categorical factor("ENVIRNMT") and click "OK"
6.Click "OK" again in the "ANOVA/MANOVA One-Way Anova:Rats.sta" dialog to run the analysis
7.Select Means tab in the "ANOVA Results" dialog and check "Show means +/- std errs" at the bottom of this tab
8.Under Means tab, make sure the variable name selected under the "Effect:" dropdown list is the factor you want for LSM display
9.Under Means tab, click "Plot" near the right side of "Least squares means" to plot LSM plot with standard errors
Issue/Introduction
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