将图形转置到图形设备R上

Question

par(mfrow=c(3,2))
plot(density(rnorm(100)))
plot(density(rexp(100)))
plot(density(rnorm(100)))
plot(density(rexp(100)))
plot(density(rnorm(100)))
plot(density(rexp(100)))

This gives me a 3x2 array of 6 plots. Can I transpose this array without redoing my code? (The original code that produced the plots is quite a bit more complicated than the above :) -- I am trying to beamer-ize something made for a latex A4 doc.)

Answer 1

Use layout instead of par(mfrow=...) for more flexible panelling.

The layout equivalent to your 3x2 panel par call is

layout(matrix(1:6, nrow=3, byrow=TRUE))
plot(...)
plot(...)
plot(...)
...

Change it to the following to transpose the array without having to change the plot calls

layout(matrix(1:6, 2))
plot(...)
plot(...)
plot(...)
...