CEUData                 Example data set for LDheatmap
CHBJPTData              Example data set for LDheatmap
LDheatmap               This function produces a pairwise LD plot.
LDheatmap.highlight     Highlight a genetic region in the linkage
                        disequilibrium heat map
LDheatmap.marks         Plots a symbol in the centers of cells of the
                        heat map image
