GGE biplots in Genstat

Use this to plot a GGE biplot for a range of results that are useful for assessing the performance of genotypes in different environments. A principal components analysis on the data variates is undertaken to measure the genotype plus genotype-by-environment variation (the principal components analysis automatically removes the environmental effects from the data).
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01:06 Import the data
02:13 Create the GGE biplot
02:58 Analyze the biplot
03:56 Add more information to the biplot
05:10 Which won where