Message-ID: <51559747020000CB000DE1D8@smtp.medicine.umaryland.edu>
Date: 2013-03-29T17:29:43Z
From: John Sorkin
Subject: Make a matrix from two lists
I am trying to write a function that makes a matrix out of two lists. As you will see run running the function below, the result is NOT a matrix but rather a list. Can anyone tell me what I am doing wrong?
Thanks,
John
test <- function(one,two) {
cat("List One=",one,"\n")
cat("List Two=",two,"\n")
cat("Should be a matrix, but is not",matrix(cbind(one,two)),"\n")
}
x <- c(1,2,3)
y <- c(11,22,33)
test(x,y)
John David Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
University of Maryland School of Medicine Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
(Phone) 410-605-7119
(Fax) 410-605-7913 (Please call phone number above prior to faxing)
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