[R] Multiple Line Plots with xyplot

[Elliot Joel Bernstein]

I'm trying to make multiple line plots, each with a different color, using the xyplot command. Specifically, I have an NxK matrix Y and an Nx1 matrix x. I would like the plot to contain a line for each (x, Y[,i]), i=1:K. I know something like 

xyplot(Y[,1] + Y[,2] + Y[,3] ~ x, type='l')

will work, but if Y is large, this notation can get very awkward. Is there a way to do something simpler, along the lines of 

xyplot(Y ~ x, type='l')

Thanks.

- Elliot

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Elliot Joel Bernstein, Ph.D. | Research Associate | FDO Partners, LLC
134 Mount Auburn Street | Cambridge, MA | 02138
Phone: (617) 503-4619 | Email: elliot.bernstein at fdopartners.com