[R] Plotting lines to sets of points
lawnboy34
jay.pare at gmail.com
Sat Sep 8 01:01:22 CEST 2007
I am using R to plot baseball spray charts from play-by-play data. I have
used the following command to plot the diamond:
plot (0:250, -250:0, type="n", bg="white")
lines(c(125,150,125,100,125),c(-210,-180,-150,-180,-210), col=c("black"))
I have also plotted different hit locations using commands such as the
following:
points(subset(framename$hit_x, framename$hit_traj=="line_drive"),
subset(-framename$hit_y, framename$hit_traj=="line_drive"), pch=20,
col=c("red"))
My question: Is there any easy way to plot a line from the origin (home
plate) to each point on the graph? Preferably the line would share the same
color as the dot that denotes where the ball landed. I have tried searching
Google and these forums, and most graphing questions have to do with
scatterplots or other varieties of graphs I am not using. Thanks very much
in advance.
-Jason
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