Put the line: cat(z1,'\n')
in your function. You may also want to put the flush.console() command right after that. Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Maas James Dr (MED) > Sent: Friday, August 20, 2010 7:41 AM > To: r-help@r-project.org > Subject: [R] output values from within a function > > Is it possible to get R to output the value of an expression, that is > being calculated within a function? I've attached a very simple > example but for more complicated ones would like to be able to debug by > seeing what the value of specific expressions are each time it cycles > through a loop that executes the expression. I'm relatively new to > this so there may be much simpler more elegant ways to do it. > > For example, is there a command I can put within the function "funct01" > that will output the value of z1 to the screen? > > Thanks > > Jim > > ================================== > ## Practice file to try out evaluations > > y <- 5 > > (x <- y^2) > > funct01 <- function (x,y) { > > z1 <- x + y > z2 <- x * y > z3 <- x^y > > results <- data.frame (z1=z1, z2=z2, z3=z3) > return(results) > > } > > funct01(7,9) > > > =============================== > Dr. Jim Maas > University of East Anglia > Norwich, UK > NR4 7TJ > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.