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GGE & GGB biplots
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README.md

gge

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Functions for GGE (genotype plus genotype-by-environment) and GGB (genotype plus genotype-by-block-of-environments) biplots.

Key features:

  • Stable, well-tested.

  • Many options to control graphic appearance.

Installation

# Install the released version from CRAN:
install.packages("gge")

# Install the development version from GitHub:
install.packages("devtools")
devtools::install_github("kwstat/gge")

Usage

Vignette: Genotype plus Genotype-By-Block-of-Environments Biplots

In the exmple GGE biplot below, the genotypes are shown by green labels and the environments are shown by blue/gold labels. Each color determines a mega-environment or block-of-environments. A thick, solid line is drawn from the origin to the 'average' of the environments within each block, and then a thinner line is drawn from the average to the individual environments. These 'residual' vectors show the deviations within each group. A dashed line extends to the edge of the plotting window and labels the group.

gge

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