[BioC] FlowViz xyplot event limit

[Davide Rambaldi]

I am still practicing with flowCore, but what about this?:

lines <- sample(100:500, 50)
y <- read.FCS(file.name, which.lines=sample)

regards
Davide


On Mar 1, 2011, at 4:34 PM, Roger Leigh wrote:

> Hi,
> 
> I'm using xyplot with smooth=FALSE, outline=TRUE to get a plain
> dotplot.  Unfortunately, some of my data has a great deal of
> events (~5×10⁴), and even after gating the number of dots is too
> great.  Details are lost, and the size of the PDF output is huge.
> 
> What I'd like to do is restrict the plot to a certain number of
> events e.g. 1×10⁴.  This doesn't appear to be directly possible
> with xyplot.  Can a flowFrame be trimmed down to a certain number
> of events, such as the first 1×10⁴?  Due to gating, I can't gate on
> the event count because this won't give me /n/ events because the
> numbers aren't continuous.
> 
> 
> Many thanks,
> Roger Leigh
> 
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Davide Rambaldi, Bioinformatics PostDoc.
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