R generate 2D histogram from raw data

Question

I have some raw data in 2D, x, y as given below. I want to generate a 2D histogram from the data. Typically, dividing the x,y values into bins of size 0.5, and count the number

Answer 1

i came to this page from http://www.r-bloggers.com/5-ways-to-do-2d-histograms-in-r/ which lists one of the answers above. It provides code samples for a total of 5 methods:

hist2d from the library gplots
hexbin,hexbinplot from the library hexbin
stat_bin2d from the library ggplot2
kde2d from the library MASS
the "hard way" solution listed above.