Hi I am trying to plot two data set in the same picture window without
overlapping with each other. I am using the format plot(x1,y1,x2,y2)
but get the following error message:
>plot(as.numeric(r0[,4]),as.numeric(r0[,7]),as.numeric(r0[,4]),as.numeric(r0[,7][ind[,1]]))
Error in plot.window(xlim, ylim, log, asp, ...) :
invalid 'ylim' value
Can anyone tell me what went wrong? Thanks.
Eric
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