I believe you are looking for the offset= parameter. Consider the following:
barplot(c(2, 3), ylim=c(1, 3)) barplot(c(2, 3), ylim=c(1, 3), offset=1) ------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Nicole Prause Sent: Friday, May 31, 2013 11:31 AM To: r-help@r-project.org Subject: [R] Y-lim minimum overrun in barplot The code below produces the plot hosted here: http://www.span-lab.com/ChartStop.jpeg error.bar <- function(x, y, upper, lower=upper, length=0.1,...){ if(length(x) != length(y) | length(y) !=length(lower) | length(lower) != length(upper)) stop("vectors must be same length") arrows(x,y+upper, x, y-lower, angle=90, code=3, length=length, ...) } Means<-tapply(data$IntercourseIntention,data$FilmAndOrder,mean) SDs<-tapply(data$IntercourseIntention,data$FilmAndOrder,sd) b<-barplot(Means,col=c("gray","tan1","blue","white"),axis.lty=1,ylim =c(2,3),names.arg=c("","","",""),ylab="Intercourse intention",xlab="Film and condition") legend("topleft",c("Pre drink, Neutral","Post drink, Neutral","Pre-drink, Sexual", "Post-drink, Sexual"),col=c("gray","tan1","blue","white"),pch=15) error.bar(b,Means, 1.96*SDs/10) (I know it's not pretty yet. To be fixed after the initial display is reasonable!) The y average value minimum truly is 1.2, but even ylim=c(1,X) produces this behavior of the bars running over the x-axis. I should be able to specify the starting value regardless of the range. Does anyone see the code bit I'm missing here? Much appreciated! Nikky **************************** Nicole Prause, PhD Research faculty Department of Psychiatry 760 Westwood Blvd University of California Los Angeles, CA 90024 npra...@mednet.ucla.edu<mailto:npra...@mednet.ucla.edu> www.span-lab.com<http://www.span-lab.com> ________________________________ IMPORTANT WARNING: This email (and any attachments) is\ ...{{dropped:10}} ______________________________________________ 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.
