improving a bar graph
On 12/16/07, Bob Green <bgreen at dyson.brisnet.org.au> wrote:
Hello, Below is the code for a basic bar graph. I was seeking advice regarding the following: (a) For each time period there are values from 16 people. How I can change the colour value so that each person has a different colour, which recurs across each of the three graphs/tie epriods? (b) I have seen much more sophisticated examples using lattice (e.g each person has a separate panel/plot). I am open to alternative code as to how I could present this data.
Why not use a line plot? It would be much easier to see how an individual is changing over time. Here's a simple way to do that using ggplot2: df <- data.frame(Time1, Time2, Time3) df$id <- 1:nrow(df) dfm <- melt(df, id="id") qplot(variable, value, data=dfm, group=id, geom="line") Hadley