Hi Gabriele,
This is one way but I'm sure that there is an optimal way of doing so...
x <- c("A","B","C","C","C","C","C","B","B")
name <- unique(x) # get unique characters
freq <- c()
for (a in 1:length(name)){
freq[a] <- sum(x==name[a])} # get frequency
out <- cbind(name,freq)
Muhammad
Zoppoli, Gabriele (NIH/NCI) [G] wrote:
Hi
how can I find, in a vector of characters, which is the most frequent one?
Thanks
Gabriele Zoppoli, MD
Ph.D. Fellow, Experimental and Clinical Oncology and Hematology, University of
Genova, Genova, Italy
Guest Researcher, LMP, NCI, NIH, Bethesda MD
Work: 301-451-8575
Mobile: 301-204-5642
Email: zoppo...@mail.nih.gov
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