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Pairwise Comparison Criteria

Compute Tukey HSD, LSD, or Bonferroni comparison criteria from ASReml-R V4 predicted values, and visualise the results as a dot plot, half-criterion error bars, compact letter display, or pairwise heatmap.

compare()
Multiple Comparison Criteria for ASReml-R Predicted Values
plot_compare()
Plot Output from compare()
as_plotly()
Convert a pc_interactive Object to a Plotly Widget

Wald Tests on Fixed-Effect Contrasts

Test user-specified linear contrasts of predicted values using Wald chi-squared or approximate F statistics, with optional multiplicity adjustment. Forest-plot visualisation included.

waldTest() waldTest.asreml()
Wald Tests for Fixed-Effect Contrasts Using Predicted Values
plot_waldTest()
Forest Plot for Wald Test Results

Random Regression

Decompose variety BLUPs into efficiency and responsiveness components via G-matrix conditioning (multivariate random regression).

randomRegress()
Multivariate Random Regression of Treatment BLUPs Within Environments
plot_randomRegress()
Plot Output from randomRegress()

Fixed Regression

OLS regression of treatment BLUEs across environments (multivariate fixed-effects regression).

fixedRegress()
Multivariate Fixed-Effects Regression of Treatment BLUEs Within Groups
plot_fixedRegress()
Plot Output from fixedRegress()

Factor Analytic Selection Tools

FAST and interaction class (iClass) approaches derived from Factor Analytic mixed models.

fast()
Factor Analytic Selection Tools: FAST and iClass Analysis

BLUP Accuracy

Compute model-based BLUP accuracy (Mrode) and Cullis H2 from ASReml-R V4 mixed models, with six plot types for single-model summaries and head-to-head model comparisons.

accuracy()
Model-Based BLUP Accuracy for ASReml-R V4 Multi-Environment Trials
plot_accuracy()
Plot accuracy results from accuracy()
pc_add()
Add a ggplot2 Layer to a pc_interactive Object

Field Trial Utilities

Simulate balanced or unbalanced multi-environment trial data with a realistic genetic covariance structure, visualise the simulated design and GEI surface, and extract or pad field trial layouts from partially observed grids.

simTrialData()
Simulate Multi-Environment Plant Breeding Trial Data
plot_simTrialData()
Plot simulated trial data from simTrialData()
padTrial()
Extract and Pad a Sub-Trial from a Field Trial Layout
plot_padTrial()
Before/After Field Layout Plot for padTrial() Results