mtbf: Mean Time Between Failures (MTBF) for repairable items.

In ReliaLearnR: Learning Modules for Reliability Analysis

Mean Time Between Failures (MTBF) for repairable items.

Description

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)
mtbf(c(2,3), c(500,500))

ReliaLearnR documentation built on May 27, 2026, 5:08 p.m.