LSD-test produces error for this code;
code <- as.factor(Rotationdata_R$`Rot/code`) #factor in the main
Nitrogen <- as.factor(Rotationdata_R$Nitrogen) #factor in the sub
Rep <- as.factor(Rotationdata_R$REP) #blocks
Year <- as.factor(Rotationdata_R$YEAR) #years
model <-
aov(Rotationdata_R$`GY(Mg/ha)`~Rep+code*as.factor(Nitrogen)+Error(Rep/Year/code),data=Rotationdata_R)
summary(model)
LSD.test(y=model,trt="code",console=TRUE)
the error;
Error in as.data.frame.default(x[[i]], optional = TRUE,
stringsAsFactors = stringsAsFactors) :
cannot coerce class "c("aovlist", "listof")" to a data.frame
What is wrong with this.
Ahmed Attia, Ph.D.
Agronomist & Soil Scientist
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