Queue size calculator

Calculates queue sizes from a waiting list

Usage

wl_queue_size(
  waiting_list,
  start_date = NULL,
  end_date = NULL,
  referral_index = 1,
  removal_index = 2
)

Arguments

waiting_list

data.frame consisting addition and removal dates

start_date

start of calculation period

end_date

end of calculation period

referral_index

the index of referrals in waiting_list

removal_index

the index of removals in waiting_list

Value

A data.frame containing the size of the waiting list for each day in the specified date range. If start_date and/or end_date are NULL, the function uses the earliest and latest referral dates in the input data.frame. The returned data.frame has the following columns:

dates

Date. Each date within the computed range, starting from the first referral.

queue_size

Numeric. Number of patients on the waiting list on that date.

Examples

referrals <- c.Date("2024-01-01", "2024-01-04", "2024-01-10", "2024-01-16")
removals <- c.Date("2024-01-08", NA, NA, NA)
waiting_list <- data.frame("referral" = referrals, "removal" = removals)
wl_queue_size(waiting_list)
#>         dates queue_size
#> 1  2024-01-01          1
#> 2  2024-01-02          1
#> 3  2024-01-03          1
#> 4  2024-01-04          2
#> 5  2024-01-05          2
#> 6  2024-01-06          2
#> 7  2024-01-07          2
#> 8  2024-01-08          1
#> 9  2024-01-09          1
#> 10 2024-01-10          2
#> 11 2024-01-11          2
#> 12 2024-01-12          2
#> 13 2024-01-13          2
#> 14 2024-01-14          2
#> 15 2024-01-15          2
#> 16 2024-01-16          3