Failure rate is the frequency with which an engineered system or component fails,
expressed in failures per unit of time. This function computes failure rate given
failure counts and total operating times.
Arguments
- failures
Numeric scalar or numeric vector of failure counts (non-negative).
- totalTime
Numeric scalar or numeric vector of total operating times.
Value
Numeric scalar: failures per unit time (failures / totalTime).
Examples
fr(75, 5000)
#> [1] 0.015
fr(c(10,5), c(1000,2000))
#> [1] 0.005
