## none
library(Pyramid)
library(animation)
ani.options(interval = 0.8)
for (i in 1:3) {
    Pyramid(male[, i], female[, i], widths = widths, fill.male = "blue3", 
        fill.female = "deeppink2", border.male = "black", 
        border.female = "black", main = "Population Pyramid for Big Stone County: 1990, 2000, 2010")
}
## R version 2.15.0 (2012-03-30)
## Platform: i386-apple-darwin9.8.0/i386 (32-bit)
## Other packages: Pyramid 1.2, animation 2.0-6