[R] heat map bin locations

I am trying to construct a het map type of plot with rectangular bins colored to indicate the number of records for a given value within different categories. I am getting close to what I want with ggplot2 and stat_bin2d. However if you run the code you will se below that the placement of the bin

[R] rbind a list of matrices

but all fail. This one gets close but I seem to lose my dim attributes goal<-rbind(matrix.list[desired.matrices]) Any ideas would be wonderful. Thanks Heath -- *Heath Blackmon Graduate Teaching Assistant Dept of Biology - Box 19498 Univ. of Texas, Arlington Arlington, TX 76