Hi Julie, Here is a little example. First I make a histogram (it looks odd because there isn't much data), then add the x axis in manually specifying at what points to place tick marks.
## histogram suppressing x axis hist(c(0, 200), xaxt = "n") ## add axis with custom ticks axis(1, at = seq(0, 200, 20)) ## For documentation see ?par ?axis ## the documentation for par is long and is never fun to go through, but it really explains a lot and R graphics will seem less mysterious if you schedule an hour to sit down and read through it Cheers, Josh On Thu, Feb 17, 2011 at 12:58 PM, Julie McWhorter <juliemcwhor...@hotmail.com> wrote: > > I haven't been able to get any code to make more tick marks than the default > by 50. > Thanks! Code: > hist(OMY$FL, main = "2010 Oncorhynchus mykiss Fork Length Frequencies at Buck > Creek Reach 1", include.lowest = TRUE, col = "blue", border = "white", breaks > = 140,xlab = "Fork Length in mm", ylab = "Frequency", xlim = range(0,200), > ylim = range (0,15), xbar=10) > [[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. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ 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.
