I know my subject line seems odd, but I want to replace an expressionsuch as a
variablewith its value. For example, I want to paste() some strings together,
assign the result to a variable s, then use the value of s as a variable to
hold another value. Something like this:
import_subjects <- function (start, iterations) {
for (i in 1:iterations) { # iterate from start to end
s <- paste("s", i, sep="") # make the data.frame's name
fn <- paste(i, ".txt", sep="") # make the filename
s <- read.delim(fn, header = FALSE) # now put it all together
#
except that I don't want to reassign s, I want to evaluate it and make its
value a variable with its own value.
}
}
If this were Lisp I'd use backquotes (or "backticks", as some say) and
commasexamples of read macrosto do this, but I can't find anything analogous
for R. How might I accomplish this in R?
Sincerely,
Frank Tamborello, PhD
W. M. Keck Postdoctoral Fellow
School of Biomedical Informatics
University of Texas Health Science Center at Houston
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