I'm analyzing the multi-environment data using the metan package and trying to get the AMMI model ANOVA and Ammi stability indexes. I can obtain the AMMI ANOVA using the code
AMMI_model <- performs_ammi(sss, env = ENV,gen = GEN,rep = REP,resp = SW)
I have this code running successfully but when I try to run code for Stability index which is
stab_indexes <- ammi_indexes(AMMI_model)
I'm getting the error
Error in rowSums((gamma.n)^2) :
'x' must be an array of at least two dimensions
