Split divides and incidence2 object in to it's underlying groupings (count variable and optionally groups).
Usage
# S3 method for class 'incidence2'
split(x, f, drop, ...)Arguments
- x
An incidence2 object.
- f
Not used. Present only for generic compatibility.
- drop
Not used. Present only for generic compatibility.
- ...
Not used. Present only for generic compatibility.
Value
A list of tibbles contained the split data. This list also has a "key" attribute which is a tibble with rows corresponding to the grouping of each split.
See also
vctrs::vec_split() on which split.incidence2() is built.
Examples
if (requireNamespace("outbreaks", quietly = TRUE)) {
data(ebola_sim_clean, package = "outbreaks")
ebola_sim_clean$linelist |>
subset(!is.na(hospital)) |>
incidence_(date_of_onset, hospital, interval = "isoweek") |>
split()
}
#> [[1]]
#> # A tibble: 53 × 4
#> date_index hospital count_variable count
#> <isowk> <fct> <chr> <int>
#> 1 2014-W15 Military Hospital date_of_onset 1
#> 2 2014-W19 Military Hospital date_of_onset 5
#> 3 2014-W20 Military Hospital date_of_onset 4
#> 4 2014-W21 Military Hospital date_of_onset 3
#> 5 2014-W22 Military Hospital date_of_onset 2
#> 6 2014-W23 Military Hospital date_of_onset 2
#> 7 2014-W24 Military Hospital date_of_onset 4
#> 8 2014-W25 Military Hospital date_of_onset 1
#> 9 2014-W26 Military Hospital date_of_onset 3
#> 10 2014-W27 Military Hospital date_of_onset 4
#> # ℹ 43 more rows
#>
#> [[2]]
#> # A tibble: 54 × 4
#> date_index hospital count_variable count
#> <isowk> <fct> <chr> <int>
#> 1 2014-W16 Connaught Hospital date_of_onset 1
#> 2 2014-W18 Connaught Hospital date_of_onset 1
#> 3 2014-W19 Connaught Hospital date_of_onset 3
#> 4 2014-W20 Connaught Hospital date_of_onset 2
#> 5 2014-W21 Connaught Hospital date_of_onset 5
#> 6 2014-W22 Connaught Hospital date_of_onset 4
#> 7 2014-W23 Connaught Hospital date_of_onset 6
#> 8 2014-W24 Connaught Hospital date_of_onset 6
#> 9 2014-W25 Connaught Hospital date_of_onset 12
#> 10 2014-W26 Connaught Hospital date_of_onset 8
#> # ℹ 44 more rows
#>
#> [[3]]
#> # A tibble: 53 × 4
#> date_index hospital count_variable count
#> <isowk> <fct> <chr> <int>
#> 1 2014-W17 other date_of_onset 3
#> 2 2014-W19 other date_of_onset 1
#> 3 2014-W20 other date_of_onset 5
#> 4 2014-W21 other date_of_onset 1
#> 5 2014-W22 other date_of_onset 3
#> 6 2014-W23 other date_of_onset 3
#> 7 2014-W24 other date_of_onset 2
#> 8 2014-W25 other date_of_onset 5
#> 9 2014-W26 other date_of_onset 2
#> 10 2014-W27 other date_of_onset 9
#> # ℹ 43 more rows
#>
#> [[4]]
#> # A tibble: 50 × 4
#> date_index hospital count_variable count
#> <isowk> <fct> <chr> <int>
#> 1 2014-W18 Princess Christian Maternity Hospital (PCMH) date_of_onset 1
#> 2 2014-W19 Princess Christian Maternity Hospital (PCMH) date_of_onset 1
#> 3 2014-W20 Princess Christian Maternity Hospital (PCMH) date_of_onset 1
#> 4 2014-W21 Princess Christian Maternity Hospital (PCMH) date_of_onset 2
#> 5 2014-W22 Princess Christian Maternity Hospital (PCMH) date_of_onset 4
#> 6 2014-W25 Princess Christian Maternity Hospital (PCMH) date_of_onset 3
#> 7 2014-W27 Princess Christian Maternity Hospital (PCMH) date_of_onset 4
#> 8 2014-W28 Princess Christian Maternity Hospital (PCMH) date_of_onset 2
#> 9 2014-W29 Princess Christian Maternity Hospital (PCMH) date_of_onset 7
#> 10 2014-W30 Princess Christian Maternity Hospital (PCMH) date_of_onset 5
#> # ℹ 40 more rows
#>
#> [[5]]
#> # A tibble: 51 × 4
#> date_index hospital count_variable count
#> <isowk> <fct> <chr> <int>
#> 1 2014-W18 Rokupa Hospital date_of_onset 1
#> 2 2014-W19 Rokupa Hospital date_of_onset 1
#> 3 2014-W20 Rokupa Hospital date_of_onset 1
#> 4 2014-W22 Rokupa Hospital date_of_onset 2
#> 5 2014-W23 Rokupa Hospital date_of_onset 2
#> 6 2014-W24 Rokupa Hospital date_of_onset 1
#> 7 2014-W25 Rokupa Hospital date_of_onset 1
#> 8 2014-W27 Rokupa Hospital date_of_onset 1
#> 9 2014-W28 Rokupa Hospital date_of_onset 5
#> 10 2014-W29 Rokupa Hospital date_of_onset 4
#> # ℹ 41 more rows
#>
#> attr(,"key")
#> # A tibble: 5 × 2
#> count_variable hospital
#> <chr> <fct>
#> 1 date_of_onset Military Hospital
#> 2 date_of_onset Connaught Hospital
#> 3 date_of_onset other
#> 4 date_of_onset Princess Christian Maternity Hospital (PCMH)
#> 5 date_of_onset Rokupa Hospital