[Bioc-devel] cummeRbund volcano plot different point size

[Leonardo Collado Torres]

I believe that this question is better suited for the support site:
https://support.bioconductor.org/

On Thu, Dec 4, 2014 at 2:13 PM, Ian Misner <imisner at umd.edu> wrote:

> Hello,
>
> I’m working with cummeRbund in R 3.1.1 and I’m trying to get a different
> point size for my csVolcano plot. I’ve tried two approaches an neither see
> to work.
>
> after loading library and the data as
>
> library(cummeRbund)
> cuff <- readCufflinks(“diff_out”)
>
> 1)use the mapping setting for the csVoclano function
>
> v <- csVolcano(genes(cuff), “EP”, “PC”, showSignificant=TRUE, alpha=0.05,
> mapping=aes(size=5))
>
> When I view this the point size stays a the default settings.
>
> 2) Alter the ggplot2 information after creating the plot
>
> t <- v + geom_point(aes(size = 2))
>
> This produces an error saying that “geom_point requires the following
> missing aesthetics: x, y
>
> if I provide those labels the points still don’t change
>
> t <- v + geom_point(aes(x=log10 y=log2 size =2))
>
> Using method two with csScatter works great and the points change size.
>
> What am I missing?
>
> Cheers
> Ian
>
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