I have the following ggplot2 code, and I would like to use the base graphics instead of ggplot2 to generate the same output - but I can’t find a way to distinguish more than one “attribute” from the regular graph, I missed something:
Ggplot2:
ggplot(data.df, aes(x=Axis1, y=Axis2, shape=Plant, color=Type)) +
geom_point()
My attempt to try (the built-in help helped me in some way):
data.ma <- as.matrix(data.df)
plot(range(data.ma[,6]), range(data.ma[,7]),xlab="Axis 1",ylab="Axis 2")
points(data.ma[data.ma[,1] == 'Plant1',6],
data.ma[data.ma[,1] == 'Plant1',7], pch=2)
points(data.ma[data.ma[,1] == 'Plant2',6],
data.ma[data.ma[,1] == 'Plant2',7], pch=3)
legend(0,legend=c("Plant1","Plant2"))
This gives me a plot where at least the “Plant” type can be highlighted on the plot, but it seems very complicated, and I cannot figure out how to change the color of all the points depending on the type of “string”.
Any suggestions?
Edit - an example with data //, where I understand that my first attempt with a plan does not even give the correct example :(:
library(ggplot2)
data.df <- data.frame(
Plant=c('Plant1','Plant1','Plant1','Plant2','Plant2','Plant2'),
Type=c(1,2,3,1,2,3),
Axis1=c(0.2,-0.4,0.8,-0.2,-0.7,0.1),
Axis2=c(0.5,0.3,-0.1,-0.3,-0.1,-0.8)
)
ggplot(data.df, aes(x=Axis1, y=Axis2, shape=Plant, color=Type)) +
geom_point()
data.ma <- as.matrix(data.df)
plot(range(data.ma[,3]), range(data.ma[,4]),xlab="Axis 1",ylab="Axis 2")
points(data.ma[data.ma[,1] == 'Plant1',3],
data.ma[data.ma[,1] == 'Plant1',4], pch=2)
points(data.ma[data.ma[,1] == 'Plant2',3],
data.ma[data.ma[,1] == 'Plant2',4], pch=3)
legend(0,legend=c("Plant1","Plant2"))