plots side by side - R

http://www.quantumforest.com/2011/10/setting-plots-side-by-side/

library(ggplot2)

 

# Create first plot and assign it to variable

p1 = qplot(wt, mpg, data = mtcars,

           xlab = 'Car weight', ylab = 'Mileage')

 

# Create second plot and assign it to variable

p2 = qplot(wt, mpg, color = factor(cyl), data = mtcars,

           geom = c('point', 'smooth'),

           xlab = 'Car weight', ylab = 'Mileage')

 

# Define grid layout to locate plots and print each graph

pushViewport(viewport(layout = grid.layout(1, 2)))

print(p1, vp = viewport(layout.pos.row = 1, layout.pos.col = 1))

print(p2, vp = viewport(layout.pos.row = 1, layout.pos.col = 2))