prob2lam {FaultTree}

reverse calculation of exponential lambda from probability

Description

A simplistic helper function for converting fixed probability to a fail rate using known exposure time.

Usage

prob2lam(prob)		

Arguments

prob

A fixed probability value that is to be converted to fail rate for exposed element entry.

Value

Returns the lambda value that will produce the fixed probability with environment object mission_time.

References

Nicholls, David [Editor] (2005) System Reliability Toolkit Reliability information Analysis Center

O'Connor, Patrick D.T. (1991) Practical Reliability Engineering John Wiley & Sons

Ericson II, Clifton A. (2011) Fault Tree Analysis Primer CreateSpace Inc.

Examples

mission_time<-8760
mttf=1/prob2lam(.6)