Error in hist.default(A) : `x' must be numeric
From: Uwe Ligges Mag. Ferri Leberl wrote:
Dear everybody! I have load a list A of numbers and want a histogram to be drawn. on hist(Y) the Machine returns: Error in hist.default(A) : `x' must be numeric I found out, that the list is of type data.frame. Y<-as.numeric(Y) returns Error in as.double.default(A) : (list) object cannot be
coerced to double
What schould I do? Than you in advance!
Extract the relevant vector from your data frame Y (this is a very prbably guess).
I suspect Ferri might have the numbers in one line in a file, and read them into R with read.table(). That would put the numbers into a data frame with n variables and one observation. If that's the case, just replacing read.table() with scan() should do it. Andy
Uwe Ligges