expect_mc_iid_mean {mcunit}

Test iid samples for correct mean

Description

Test if samples are coming from a specific mean. Not guaranteed to be exact, as it estimates the standard error from the sample.

Usage

expect_mc_iid_mean(object, mean, control = NULL)

Arguments

object

A function taking one argument - that generates n univariate iid samples.

mean

The expected mean of the samples returned from object.

control

a list controlling the algorithm

• n number of samples to be taken in the first step. Default: 1e3

• maxseqsteps: Number of sequential attempts to use. Default: 7.

• incn: Factor by which to multiply n from the second sequential attempt onward. Default: 4.

• level: bound on the type I error, ie the probability of wrongly rejecting a sampler with the correct distribution. Default: 1e-5.

• debug: If positive then debug information will be printed via 'message()'. Default: 0.

Value

The first argument, invisibly, to allow chaining of expectations.

Examples

   sampler <- function(n) rbinom(n,prob=0.6,size=5)
   expect_mc_iid_mean(sampler, mean=3)
   testthat::expect_error(expect_mc_iid_mean(sampler, mean=2))