Creates density plot of the pi0 distribution.

There is also a vertical line plotted that represent a conservative \(\pi_0\) estimate. This estimate is used in our more stable FDR estimation in the subset PSMs of interest.

pi0plot(n_targets, n_decoys, conservative_pi0 = TRUE)

Arguments

n_targets	vector of observed target PSMs.
n_decoys	vector of observed decoy PSMs.
conservative_pi0	logical; If TRUE (default), adds horizontal line indicating the conservative \(\pi_0\) estimate.

Value

ggplot object.

Examples

## Visualize the pi0 distribution when observing 10 targets and 3 decoys
set.seed(10)
pi0plot(10,3)