Hello, Asking for help from R experts here. I'm totally new in R and I'm just spending lots of time to figure out how to plot scatter plots on R. I have a large data set (>10K rows) which I wish to plot out the data using a scatter plot using this function on the tutorial: http://www.statmethods.net/graphs/scatterplot.html
plot(wt, mpg, main="Scatterplot Example", xlab="Car Weight ", ylab="Miles Per Gallon ", pch=19)
However, my dataset contains many '0' which causes the plot to look strange and wish to have them omitted. How can I do that please? Thanks!