plot - R Time series scatterplot issue -

I have a problem with scatter plots in R. I am trying to plot the two time series but I always get a chart, the value of that year's value is the P-T value which I set. Each series has 120 values, this is the command:

  plot (x, y, pch = "+", col = heat.colors (120))  

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you points

() function to plot more than one series. Think about your plot as a "canvas" and you are "painting" the extra layers with work.

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