incidence (version 1.7.4)

get_counts: Get counts from an incidence object

Description

Get counts from an incidence object

Usage

get_counts(x, groups = NULL)
# S3 method for incidence
get_counts(x, groups = NULL)

Value

a matrix of counts where each row represents a date bin

Arguments

x

an incidence object.

groups

if there are groups, use this to specify a group or groups to subset. Defaults to NULL indicating that all groups are returned.

Examples

if (require(outbreaks)) { withAutoprint({
  dat  <- ebola_sim$linelist$date_of_onset
  gend <- ebola_sim$linelist$gender
  i    <- incidence(dat, interval = "week", groups = gend)
  
  ## Use with an object and no arguments gives the counts matrix
  head(get_counts(i))

  ## Specifying a position or group name will return a matrix subset to that
  ## group
  head(get_counts(i, 1L))
  head(get_counts(i, "f"))

  ## Specifying multiple groups allows you to rearrange columns
  head(get_counts(i, c("m", "f")))

  ## If you want a vector, you can use drop
  drop(get_counts(i, "f"))
})}