How to Fix: contrasts can be applied only to factors with 2 or more levels
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Sinewi Rose Installieren r contrasts can be applied only to factors Bezüglich Zähler Zittern
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R Error: contrasts can be applied only to factors with 2 or more levels
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Sinewi Rose Installieren r contrasts can be applied only to factors Bezüglich Zähler Zittern
![error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) : contrasts can be applied only to factors with 2 or more levels, in R - Stack Overflow](https://i.stack.imgur.com/dGVk0.png "error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) : contrasts can be applied only to factors with 2 or more levels, in R - Stack Overflow")
error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) : contrasts can be applied only to factors with 2 or more levels, in R - Stack Overflow
contrasts can be applied to only factor in R - Stack Overflow
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What am I doing wrong? Please help me out. : r/RStudio
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