I am struggling for code for analysis of "split split plot design with repeated measures "
My main plot is method of sowing (2 options)
sub plot is cropping system (2 systems)
sub-sub plot is varieties (3 options)
the study variable is yield over 2013 to 2019
can anyone please help me to analyze this data?
I could find code for split split plot in agricolae
But when yields has repeated measures, i not sure how to handle this
The autocorrelation between years is another issue which will need addressing.
But this is a complex subject and you may require professional statistical help.
Once you formulate a potentially suitable model you could ask a more detailed question about suitability on the R-SIG-mixed-models mailing list, see: https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models