```
#' @title Plot population pyramid
#' @export
#'
plot_pyramid = function(pyramid, colors = c("blue","red","darkblue","darkred"), xlab = "Population size", ylab = "Ages", xlim = NULL)
{
females = pyramid@females
males = pyramid@males
ages = pyramid@ages
if(is.null(xlim))
{
xlim = max(c(females, males))
xlim = c(-xlim, xlim)
}
# surplus
surplus = females - males
m_sp = surplus; m_sp[surplus > 0] = 0
f_sp = surplus; f_sp[surplus < 0] = 0
males = -males - m_sp
females = females - f_sp
ylim = c(0,length(ages))
nages = length(ages)
y0 = 0:(nages-1)
y1 = 1:nages
plot(1,1, type = "n", xlim = xlim, ylim = ylim, yaxt = "n", xlab = xlab, ylab = ylab)
abline(h = c(y0, tail(y1,1)), lty = 2, col = "gray50")
axis(2, at = y1-0.5, ages, las = 1)
#females
rect(ybottom = y0, ytop = y1, xleft = 0, xright = females, col = colors[1])
rect(ybottom = y0, ytop = y1, xleft = females, xright = females + f_sp, col = colors[3])
#males
rect(ybottom = y0, ytop = y1, xleft = 0, xright = males, col = colors[2])
rect(ybottom = y0, ytop = y1, xleft = males, xright = males - m_sp, col = colors[4])
}
```

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.