qqplot_pvals: QQ-plot a vector of p-values.

In mirvie/mirmodels: Models Built by the Informatics Team at Mirvie

Description

QQ-plot a vector of p-values.

Usage

qqplot_pvals(
  x,
  labels = NULL,
  controls = NULL,
  cases = NULL,
  lambda_correct = FALSE,
  aes_opts = list(null_alpha = 1, fit_alpha = 1)
)

Arguments

x	A numeric vector with elements in (0, 1).
labels	A character vector of length at most length(x). Labels for the smallest p-values.
controls	Number of controls in the tests.
cases	Number of cases in the tests.
lambda_correct	A flag. Apply a correction to make the slope of the fitted line equal to 1.
aes_opts	A list. Aesthetic options for the plot. The list has two named elements. null_alpha: Transparency of the x = y line. fit_alpha: Transparency of the fit line.

Value

A ggplot2::ggplot().

Examples

set.seed(1)
pvals <- runif(999) ^ (4 / 3)
qqplot_pvals(pvals,
  controls = 500, cases = 499,
  aes_opts = list(null_alpha = 0.5, fit_alpha = 0.5)
)
qqplot_pvals(pvals,
  labels = c("a", "b", "c"),
  controls = 500, cases = 499,
  lambda_correct = TRUE
)

mirvie/mirmodels documentation built on Jan. 14, 2022, 11:12 a.m.