On 7/16/07, Donatas G. <[EMAIL PROTECTED]> wrote: > Hi, > > I cannot figure out how to draw a certain plot: could someone help me out? > > I have this data.frame from a survey > my.data > > that looks like something like this: > > col1 col2 col3 col4 > 1 5 5 4 5 > 2 3 5 3 1 > 3 2 3 4 5 > 4 3 1 1 2 > 5 5 5 4 5 > 6 4 2 5 5 > .... > > > Each row represents a single questionnaire with someone giving his > agreement/disagreement with a statement (each column is a statement) that is > coded from 1 to 5. > > I need to draw a barplot giving a visual representation showing differences > between the five columns: Each bar should represent a single column, and > should be divided into 5 sections, the thickness of each depending on the > number of respondents who choose that particular answer. > > How do I do that? All I have managed to do so far is to produce a barplot of a > single column, and that - only with bars side by side...
One way would be the use the ggplot2 and reshape packages: library(ggplot2) df <- as.data.frame(matrix(sample(1:5, 100, rep=T), ncol=5)) dfm <- melt(df, m=1:5) qplot(variable, data=dfm, geom="bar", fill=factor(value)) qplot(variable, data=dfm, geom="bar", fill=factor(value), position="dodge") qplot(variable, data=dfm, geom="bar", fill=factor(value), facets = . ~ value) Hadley ______________________________________________ R-help@stat.math.ethz.ch 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.
