by David Lillis, Ph.D.
In Part 6, let’s look at basic plotting in R. Try entering the following three commands together (the semi-colon allows you to place several commands on the same line).
x <- seq(-4, 4, 0.2) ; y <- 2*x^2 + 4*x - 7
plot(x, y) [Read more…] about R Is Not So Hard! A Tutorial, Part 6: Basic Plotting in R