View source: R/presence_summary.R
presence_summary | R Documentation |
Summarize presence data
presence_summary(presence, from = NULL, to = NULL)
presence |
a data.frame with one date column (needs to be named "Date") and columns for each individual with 0/1 indicating absence/presence of that individual on that date |
from |
character indicating the beginning of the period to be considered (by default the first date in the Date column) |
to |
character indicating the end of the period to be considered (by default the last date in the Date column) |
If an individual left and/or joined multiple times, this will be indicated by the stint
column.
The init
column marks those individuals that were present on the beginning of the period considered.
a data.frame with entries for each individual indicating the first and last dates of their stays.
data(advpres)
presence_summary(advpres)
presence_summary(advpres, from = "2010-01-27", to = "2010-02-02")
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