snpCorrelationPlot {GWASTools} | R Documentation |
Plots SNP correlation versus chromosome.
snpCorrelationPlot(correlations, chromosome, ylim=c(0,1), ylab = "abs(correlation)", ...)
correlations |
A vector of correlations. |
chromosome |
A vector containing the chromosome for each SNP. |
ylim |
The limits of the y axis. |
ylab |
The label for the y axis. |
... |
Other parameters to be passed directly to |
Plots SNP correlations (from, e.g., PCA), versus chromosome.
correlations
must have the same length as chromosome
and is
assumed to be in order of position on each chromosome. Values within
each chromosome are evenly spaced along the X axis.
Cathy Laurie
correlations <- sample(0.001*(0:1000), 1000, replace=TRUE) chromosome <- c(rep(1,400), rep(2,350), rep("X",200), rep("Y",50)) snpCorrelationPlot(correlations, chromosome)