sample_size: Sample size calculator

In nullabor: Tools for Graphical Inference

Sample size calculator

Description

This function calculates a table of sample sizes for with an experiment, given a lineup size, and estimates of the detection rate.

Usage

sample_size(n = 53:64, m = 20, pA = seq(1/20, 1/3, 0.01), conf = 0.95)

Arguments

n	range of sample sizes to check, default is 53:64
m	linup size, default 20
pA	range of estimated detection rates to consider, default is seq(1/20, 1/3, 0.01)
conf	confidence level to use to simulate from binomial

Examples

pow <- sample_size()
pow
library(ggplot2)
library(viridis)
ggplot(pow, aes(x=n, y=pA, fill=prob, group=pA)) +
  geom_tile() +
  scale_fill_viridis_c("power") +
  ylab("detect rate (pA)") + xlab("sample size (n)") +
  theme_bw()

nullabor documentation built on Sept. 11, 2024, 8:20 p.m.