I wrote about better display of PrP haplotype and genotype frequencies in last post. I have proposed a set of histograms instead of a table. However, parallel plot (R example 1, R example 2, random web article) is even better. Here is my attempt to use it on data compiled by Lühken et al. (2008):
There is still room for improvement of the plot i.e. axis, ticks, ... For example, I would prefer to have 0-100 % scale on y axis. Anyway, the idea of parallel plot for haplotype/genotype frequencies in case of many haplotypes/genotypes should be clear. Here is also the data and R code to produce the plots.