# 17.4.1.5 The Three-Way ANOVA Dialog Box

This dialog can be used to carry out three-way ANOVA analysis. To open this dialog, select Statistics:ANOVA:Three-Way ANOVA from Origin menu.

## Recalculate

Recalculate Controls recalculation of analysis results None Auto Manual For more information, see: Recalculating Analysis Results

## Input

### Input Data

Specify Input Data form as Raw or Indexed.

Indexed In this mode, one column contains factor variables data and the other columns contain levels of these factors. FactorA/FactorB/FactorC Select Data for factor 1, factor 2 and factor 3 variables. Note that the factor columns will be set as categorical if Text column. Data Select data for the response variable.
Raw In this mode, response data from each level of the factor variables are stored in a separate column. FactorA/FactorB/FactorC Name Specify the level names of factor. Number of Levels Specify the level numbers of factor. The default is 2. And each level will have its own Leveli controls. Note that the system variable @AML can be used to control the max number of supported levels for ANOVA, which is 25 by default. You can change the maximum number of levels by assigning new values to the @AML variable. Leveli name Specify the level names of each Factor. Data You can set Data through the edit box below or by clicking to open Three way ANOVA Data dialog box to set it.

### Significance Level

Specify the significance level of three-way ANOVA.

### Homogeneity Tests(Levene's Test)

Select to perform test for homogeneity of variance.

## Model

Specify the ANOVA model. Select all for a full factorial model. Main effects are always counted.

## Descriptive Statistics

Specify whether to compute descriptive statistics for the main effects and interactions.

## Means Comparison

Choose methods of post-hoc pairwise means comparison:

Significance Level Specify the significance level for post-hoc pairwise means comparison. The default is 0.05. Different methods for pairwise means comparison. (For more information for how to choose these methods, see Selecting mean comparison methods.) (For more information for algorithm, see Algorithms) Showed difference of mean value with letters. Same letter means no significant difference, while different letter mean significant difference between two groups.

## Power Analysis

Compute power analysis:

Actual Power Select to computer the actual power Select to computer the hypothetical power from the hypothetical Sample Size(s) entered below Specify the significance level($\alpha$) for power computation. This option is only available when either Actual Power or Hypothetical Power is checked. Specify the hypothetical sample size, using space to separate each entry. The default is 50 100 200.

## Mean Plot

Specifies whether to generate the means plot for main effects and interactions in the report sheet.

 Notes: If the Factor column is Set as Categorical, then the output graph will be plotted according to the categorical order customized through (Column Properties) Categories tab from Factor column.

## Output

Dataset Identifier Specify the identifier for the source datasets. Only available when the Input Data is Indexed. Identifier Specify the source datasets information from the options below. Range Use the range syntax. Book Name Use the workbook long name. Sheet Name Use the worksheet name. Name Use the long name of the corresponding column if there is a long name, otherwise use the short name of column. Short Name Use the short name of the corresponding column. Long Name Use the long name of the corresponding column. Units Use the unit of the corresponding column. Comments Use the comment of corresponding column. Use custom formats to define a data identifier. For its usage, please refer to Complete List of @Options. Specifies the destination of report worksheet tables: Book Specifies the destination workbook. Do not output report worksheet tables. / Output report worksheet tables in a new sheet of source data workbook. Output report worksheet tables to a new workbook. Output report worksheet tables to a specified existing workbook. Sheet The destination worksheet, always . Result Log Select to output the result to Result Log. Script Window Select to output the result to Script Window. Notes Window Choose from the drop-down list to specify the destination Notes Window. Or enter a name to output the results to a new Note window with the specific name here. Do not output to any Notes window. Output to a new Notes window. Specifies the destination to output the data for plots (you must select a Plots option, below). Select to specify whether to include following additional tables in report worksheet. Notes Input Data Masked Data Missing Data