MTBF = total operating time / number of failures. The MTBF is the expected time
between consecutive failures. It is commonly used for repairable items. The
behavior is the same as mttf here; keep separate name for semantic clarity.
Usage
mtbf(failures, totalTime)
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: MTBF. If number of failures is zero, returns Inf (with a warning).
Examples
mtbf(5, 1000)
#> [1] 200
mtbf(c(2,3), c(500,500))
#> [1] 200
