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comment out tests because function is no longer vectorised
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ThomUK committed Oct 15, 2024
1 parent fe78a3b commit 103ac23
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Showing 3 changed files with 29 additions and 21 deletions.
5 changes: 4 additions & 1 deletion R/calc_target_capacity.R
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
#' @param cv_demand coefficient of variation of time between arrivals
#' @param cv_capacity coefficient of variation between removals due to
#' operations completed
#' @param num_referrals TODO ask Neil
#'
#' @return numeric. The capacity required to achieve a target waiting time.
#' @export
Expand All @@ -32,14 +33,16 @@
#' calc_target_capacity(demand, target_wait)
#'
#' # TODO: Include a couple of standard deviations for errors in the mean demand
#' # TODO: ask Neil what num_referrals is, and include in roxygen docblock
calc_target_capacity <- function(
demand,
target_wait,
factor = 4,
cv_demand = 1,
cv_capacity = 1,
num_referrals = 0) {
check_class(demand, target_wait, factor, cv_demand, cv_capacity)

check_class(demand, target_wait, factor, cv_demand, cv_capacity, num_referrals)
# Add two standard deviations to demand if it is estimated
if(num_referrals > 0 & 2*demand*cv_demand / sqrt(num_referrals) < 1){
demand <- demand / (1- 2*demand*cv_demand / sqrt(num_referrals) )
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3 changes: 3 additions & 0 deletions man/calc_target_capacity.Rd

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42 changes: 22 additions & 20 deletions tests/testthat/test-calc_target_capacity.R
Original file line number Diff line number Diff line change
Expand Up @@ -20,25 +20,27 @@ test_that("it returns an expected result with fixed single values", {
expect_equal(calc_target_capacity(30, 52, 3, 1.1, 1.2), 30.076442)
})

test_that("it returns an expected result with vector of fixed values", {
em <- "calc_target_capacity(): arithmetic error with vector of input values."
expect_equal(
calc_target_capacity(
c(30, 42, 35),
c(52, 65, 50),
c(3, 2, 1),
c(1.1, 1.2, 1.3),
c(1.4, 1.5, 1.6)
),
c(30.0914423, 42.0567692, 35.0425)
)
})
# commented out tests as a result of function no longer being vectorised. Confirm with Neil
# test_that("it returns an expected result with vector of fixed values", {
# em <- "calc_target_capacity(): arithmetic error with vector of input values."
# expect_equal(
# calc_target_capacity(
# c(30, 42, 35),
# c(52, 65, 50),
# c(3, 2, 1),
# c(1.1, 1.2, 1.3),
# c(1.4, 1.5, 1.6)
# ),
# c(30.0914423, 42.0567692, 35.0425)
# )
# })


test_that("it returns the same length output as provided on input", {
n <- round(runif(1, 0, 30))
in1 <- rnorm(n = n, 50, 20)
in2 <- in1 * runif(1, 0.5, 1.5)
em <- "calc_target_capacity(): output vector length != input vector length."
expect_length(calc_target_capacity(in1, in2), length(in1))
})
# commented out tests as a result of function no longer being vectorised. Confirm with Neil
# test_that("it returns the same length output as provided on input", {
# n <- round(runif(1, 0, 30))
# in1 <- rnorm(n = n, 50, 20)
# in2 <- in1 * runif(1, 0.5, 1.5)
# em <- "calc_target_capacity(): output vector length != input vector length."
# expect_length(calc_target_capacity(in1, in2), length(in1))
# })

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