Graph does not show after type lattice command

Question

I installed the package lattice, and typed xyplot(). There is no error message but neither does a graph show up. I tried to switch to plot()

Answer 1

Try this:

require(lattice)
require(stats)

Depth <- equal.count(quakes$depth, number=8, overlap=.1)
my_plot <- xyplot(lat ~ long | Depth, data = quakes)
print(my_plot)

Thanks to richiemorrisroe and Gavin Simpson.