par(mfrow=c(1,2)) plot(cpt.mean(na.omit(Cameroons$Cameroon..RETAIL..Yaound..Wheat..flour...USD.Kg), method = 'BinSeg'),cpt.col='blue', cpt.width = 4,main="blah", which=1) plot(cpt.mean(na.omit(Cameroons$Cameroon..RETAIL..Douala..Wheat..flour...USD.Kg), method = 'BinSeg'),cpt.col='blue', cpt.width = 4,main="blah", which=2)

I tried running this code but get an error message saying... "Error in box(...) : invalid 'which' argument"

cpt is from the changepoint package in R.

I just want 2 plots to be in the same row

I tried assigning a plot to a variable but it returns a NULL object

What would you do?