[R] plot two graphs with different length of data

Eric Hu list.eric at gmail.com
Tue Jun 13 02:28:56 CEST 2006

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:

Error in plot.window(xlim, ylim, log, asp, ...) :
        invalid 'ylim' value

Can anyone tell me what went wrong? Thanks.


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