[R] Error clmm(){ordinal}

adesgroux aurore.desgroux at rennes.inra.fr
Mon Jun 2 14:00:12 CEST 2014

Dear all,

I am trying to run the function clmm() on a data table composed as following

I have 187 pea lines assessed on 4 years * 2 locations * 3 blocs * 15
plantes for disease resistance. Disease resistance is assessed with a 0-to-5
scale which made an ordinal variable.
Here is the script a wrote :



I want to create this modele to run function Anova() to know if disease
resistance is different among lines.

When I run the script, I have an error : 
Erreur : all(sapply(gfl, nlevels) > 2) is not TRUE
I can't find anything about it on the internet...
Can someone help me on this?

Best regards

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