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Thanks Peter. We did manage to solve the problem using the approach bellow. Hab <- cbind(seq(1,21),habitat) hab <- matrix(NA,nrow=3,ncol=7) for (i in 1:3) {hab[i,] <- Hab[habitat==i,1]} The problem was...

Thanks Peter. We had a look at both Hab and habitat. These are integers representing habitat types. habitat <- read.csv("Ungulate_vegetation.csv") habitat <- habitat[,3] habitat [1] 3 3 4 3 3 3 4 4 3 3 3 3...

Dear Volunteers, When running the scriptbelow, specifically in the part of reproduction of the data.framesreturned the error: Error in as.data.frame.default(x[[i]], optional = TRUE, stringsAsFactors = stringsAsFactors) : cannot coerce class ""group"" to a data.frame I searched...

I have been working on the following code but keep getting an err message. My current thinking is that the problem is on the indexing but do not know how to fix it. Any help please? ungulate <- read.csv("Ungulate...

Dear, how to set up the equation of the straight line and the R ^ 2, remove the bars of the chart area and the caption to the right? Follow the attached file containing the data. We used the R version...