proptests: Proportion Tests

In exams.forge: Support for Compiling Examination Tasks using the 'exams' Package

Proportion Tests

Description

proptests runs a bunch of modifications of the input parameters of proptest to generate all possible proportion tests. See under "Details" the detailed parameter values which are used. Note that not giving the parameter hyperloop will results in several hundred tests generated. Only the distinct tests will be returned, with the first element being proptest. If only a specific element of a proptests is of interest, provide the name of the element in elem. All proptests will then be returned where the value of elem is different.

Usage

proptests(proptest, elem = NULL, hyperloop = NULL)

Arguments

proptest	proptest: the base result from a valid t-test generated by proptest_num()
elem	character: element to extract (default: NULL)
hyperloop	named list: parameter values to run over (default: see above)

Details

The default hyperloop is:

list(x           = c(proptest$x, proptest$n-proptest$x)
     pi0         = c(proptest$pi0, 1-proptest$pi0, proptest$x/proptest$n, 1-proptest$x/proptest$n)
     alpha       = unique(c(proptest$alpha, 0.01, 0.05, 0.1)),
     alternative = c("two.sided", "greater", "less")
   )

Value

list of proptest objects is returned

Examples

basetest  <- proptest_num(x=3, n=8, alternative="greater")
# vary the number of observations
hyperloop <- list(pi0 = c(basetest$pi0, 1-basetest$pi0, 
                          basetest$x/basetest$n, 1-basetest$x/basetest$n))
# return all different tests
tts       <- proptests(basetest, hyperloop=hyperloop)
# return all different random sampling functions
proptests(basetest, "X", hyperloop)

exams.forge documentation built on Sept. 11, 2024, 5:32 p.m.