Plot test of Equal or Given Proportions

Visualise prop.test for testing the null that the proportions (probabilities of success) in several groups are the same, or that they equal certain given values.

ggproptest(t, alpha=0.05,colaccept="lightsteelblue1",
colreject="gray84", colstat="navyblue")

Arguments

t	a list result of prop.test of "htest" class
alpha	alpha level for ploting distribution, when prop.test is used on more than 2 samples
colaccept	color the acceptance area of the test
colreject	color for the rejection area of the test
colstat	color for the test statistic vline

Examples

x  <- c(5, 8, 12)
y <- c(8, 9, 13)
pr_test <- prop.test(x, y)
#> Warning: Chi-squared approximation may be incorrect
pr_test
#> 
#> 	3-sample test for equality of proportions without continuity
#> 	correction
#> 
#> data:  x out of y
#> X-squared = 3.4538, df = 2, p-value = 0.1778
#> alternative hypothesis: two.sided
#> sample estimates:
#>    prop 1    prop 2    prop 3 
#> 0.6250000 0.8888889 0.9230769 
#> 
ggproptest(pr_test)