You might look at "eval" and "parse". Reid Huntsinger
-----Original Message----- From: Spencer Graves [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 11, 2003 4:03 PM To: janet rosenbaum Cc: r-help Subject: Re: [R] different file types The command "'source' causes R to accept its input from the named file". I don't know what you mean by "associative arrays", but "`switch' evaluates `EXPR' and accordingly chooses one of the further arguments". Hope this helps. Spencer Graves janet rosenbaum wrote: > Hi. I am writing a program to read in different types of files from a > GUI. While it's easy to read different types of text files, I am > stymied how to make R execute the input. > > Ideally I could get the command from input and dereference it like > `command`(filename) > where command would be read.dta or read.table or read.xport or any of > the similar commands. > > Also, is there a way to make associative arrays? > It would be nice to be able to get the format from input and then have > command<-array[format] > > Otherwise, I guess I'll just do cascading if's. > > Thanks, > > Janet Rosenbaum [EMAIL PROTECTED] > Center for Basic Research in the Social Sciences, Harvard University > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help ------------------------------------------------------------------------------ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
