One of the most important R function to create a scatter plot is plot.
The following example is a simple demonstration on how to do that:
x11()
x <- seq(-6, 10, by=0.25) # c(-6:10)
y <- x*x*x/8 - 9*x -15
plot(x, y,
main="Scatter Plot" , # Title
sub ="plot 2 vectors" , # Sub title
xlab="x" , # x label
ylab="f(x)" , # y label,
xlim=c(-8,12) , # range for x
ylim=c(-45,15) , # range for y
col ="blue" , # color
pch = 19 , # 19=solid
type="p" # type (p = points, also possible:
# l = lines
# b = both lines and points
# c = b without p
# o = overplotted
# h = histogram
# s = stair steps
# S = other steps,
# n = not plotting
)
z <- locator(1) # wait for mouse click or enter pressed
