[R] Questions about ggplot2

[Juliet Hannah]

I started with the summarized data, and there are different ways to do
this. For this example, let there be four columns and a corresponding
sum of 1s.

library("ggplot2")
mydf  <- data.frame(colname = c("A","B","C","D"),mycolsum=c(1:4))
p <- ggplot(mydf,aes(x=colname,y=mycolsum))
p <- p + geom_bar(stat = "identity")

# Here is one way a legend would be created, and how to remove it.

library("ggplot2")
mydf  <- data.frame(colname = c("A","B","C","D"),mycolsum=c(1:4))
p <- ggplot(mydf,aes(fill=colname, x=colname,y=mycolsum))
p <- p + geom_bar(stat = "identity")
p + opts(legend.position = "none")


On Thu, May 13, 2010 at 11:33 AM, Christopher David Desjardins
<cddesjardins at gmail.com> wrote:
> Hi I have two questions about using ggplot2.
>
> First, I have multiple columns of data that I would like to combine into one
> histogram where each column of data would correspond to one bar in the
> histogram. Each column has 0 or 1s and I want my bars in the histogram to
> correspond to the sum of the 1s in each column. Does that make sense?
>
> Second, is there a way to completely turn off the legend?
>
> Thanks!
> Chris
>
> PS - Please cc me on the email as I'm a digest subscriber.
>
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