Hi!
I am trying to use ggplot2 to create a stacked bar plot. Previously I
tried using barplot() but gave up because of problems with the
positioning of the legend and other appearance problems. I am now
trying to learn ggplot2 and use it for all the plots that I need to
create for my dissertation.
I am able to create normal bar plots using ggplot2, but I am stomped
with the stacked bar plots.
This works:
barplot(t(file.codes), beside = FALSE)
the data.frame file.codes looks like this .....
code.1 code.2 code.3 code.4 code.5 ....
file.1 2 0 0 5 4 ....
file.2 3 18 1 0 2 ....
....
I would like each file to be a bar and then each code stacked for each
file. By transposing the file.codes data.frame barplot() will allow
me to do so. I am trying to obtain the same result in ggplot2 but i
think that qplot wants the data to be like this:
file.1 code.1 2
file.1 code.2 0
file.1 code.3 0
file.1 code.4 5
file.1 code.5 4
file.2 code.1 3
file.2 code.2 18
....
I think that I need to use the package "reshape", but I am not sure
whether to use cast(), melt(), or recast() and how to set up the
function.
Thanks,
Henri-Paul
--
Henri-Paul Indiogine
Curriculum & Instruction
Texas A&M University
TutorFind Learning Centre
Email: hindiog...@gmail.com
Skype: hindiogine
Website: http://people.cehd.tamu.edu/~sindiogine
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