count_periods: Count periods

In TheFridayInstitute/fimoodler: Data Export for Friday Institute Moodle courses

Description

Counts the number of complete periods between two time points. Period length must be specified. Timezone of start[1] is used as timezone.

Usage

count_periods(start, end, period, from_zero = FALSE)

Arguments

start	A vector of dates or datetimes. Lubridate, POSIX, and text ( or length(end).
end	A vector of dates or datetimes. Lubridate, POSIX, and text ( or length(start).
period	A single lubridate period.
from_zero	A single logical value specifying whether to start counting from zero (TRUE) or +1/-1 (FALSE).

Details

Counting from zero yields the number of complete periods between start and end. Counting from +1/-1 yields which period the value of end is in.

Value

A numerical vector with a value for each value of start.

TheFridayInstitute/fimoodler documentation built on May 28, 2019, 9:37 a.m.