Calculate and plot pcs

Usage

plot_pc_scree(bedfile.path, num.pcs, cumulative = F)

Arguments

bedfile.path: character, path to bedfile (include .bed extension)
num.pcs: numeric, total number of pcs to plot
cumulative: boolean, if T will plot the cumulative proportion of variance

Value

GGplot of the given plot.

The output is sensitive to the number of PC's indicated. The program used to calculate PCs returns singular values only for components indicated. So the proportion can only calculate using the variance contained in these components. Consequently, shouldn't set the num.pcs too low, this could lead to strange results.

Examples

# work in progress