ldplot function

LD plot

Creates a linkage disequilibrium plot from a matrix of pair-wise LD coefficients

ldplot(ld.mat, ld.type, color = heat.colors(50), title = NULL)

Arguments

• ld.mat: A square matrix of LD coefficients
• ld.type: A character value specifying what coefficients are used as input: either 'r' for correlation coefficients or 'd' for D/Dprime scores
• color: A range of colors to be used for drawing. Default is heat.colors
• title: Character string for the title of the plot

References

Montana, G. HapSim: a simulation tool for generating haplotype data with pre-specified allele frequencies and LD coefficients. 2005.

Author(s)

Giovanni Montana

Examples

data(ACEdata)

 of ACEdata using r^2 coefficients
ldplot(cor(ACEdata), ld.type='r')