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AMMI Options

Use this to select the output and graphs to be generated by an AMMI analysis.

Display

Specifies which items of output are to be displayed in the Output window.

ANOVA table ANOVA table summarizing the contribution of each component to the interaction term
Genotype means and scores Genotype means and scores
Environment means and scores Environment means and scores
AMMI stability values (ASV) Table of stability values for each genotype (the definition of ASV is given in the AMMI procedure help)
Table of environment means and variances Table of environment means and variances
Genotype estimates Genotype estimates for each environment
Clustering of genotype estimates Hierarchical clustering of AMMI genotype estimates over environments (using the average link method and Euclidean test for the similarity matrix)

Graphics

Specifies which items to display within a graph.

Genotype and environment means against IPCA scores When selected, plots of the genotype and environment means against their corresponding IPCA scores will be generated for the dimensions specified within the X-dimension and Y-dimension fields.
AMMI biplot of IPCA scores When selected, a biplot of the IPCA scores will be generated using the dimensions specified within the X-dimension and Y-dimension fields.
X-dimension Dimension to use for the plots.
Y-dimension Dimension to use for the plots.
Scaling Controls scaling for environment and/or genotype scores. When either the Environment or Genotype options are selected the environment or genotype scores respectively are multiplied by their corresponding eigenvalues. When Symmetric is selected the environments and genotypes are multiplied by the square root of their corresponding eigenvalues.

Number of IPCA scores

Specify the number of roots (sets of scores) to be used for the principal component analysis.

Action buttons

OK Save the settings and close the dialog.
Cancel Close the dialog without further changes.
Defaults Reset the options to their default settings.

See also

  • AMMI menu
  • AMMI procedure in command mode
Updated on June 14, 2019

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