hist(1:4, main= "1098_s_at")
I got similar results from your exact statement after first defining names and ctx as follows:
names <- letters[1:3]
ctx <- data.frame(x=1:4, y=1:4, a=1:4)In each case, I got a histogram with a standard text title at the top. What version of R are you running? If it's NOT R 1.9.0pat, you might try upgrading -- and then running "update.packages()".
2. "names" is that name of a function, and it is generally considered bad practice to mask function names with names of other objects, even though R can often (though not always) determine which object you want from the context. What do you get from "conflicts()"?
hope this helps. spencer graves
[EMAIL PROTECTED] wrote:
I have a data frame "ctx" and an array "names", where names[i] is the column name for ctx[i], and am making histograms for each column of ctx:
for (i in 2:ncol(ctx)){hist(ctx[,i], br=100, main=names[i])}
The titles don't come out like I expect. Each names[i] is something like "1098_s_at" and R doesn't seem to like printing these. Instead, it prints "1" or "2" or "3" etc.
I have also tried binding ctx and names into a single data frame and referencing the first row of each [i] as the title, but I get the same result.
Can someone tell me how to get these titles attached?
Thanks,
Graham
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