# cModel.Unreliability

Revision as of 21:17, 13 November 2015 by Kate Racaza (talk | contribs)

**Member of**: SynthesisAPI.cModel

Returns the probability of failure at the specified time. **Double**

## Syntax

.Unreliability(Time,StartAge,DutyCycle)

### Parameters

*Time*

- Required. Double. The time at which to calculate the probability of failure.

*StartAge*

- Optional. Double. The starting age. Default value = 0.

*DutyCycle*

- Optional. Double. The duty cycle. Default value = 1.

## Example

VBA|VB.NET... 'Add code to get an existing model or create a new one. Dim AModel As New cModel ... Calculate the model's probability of failure at time = 100. Dim ResultValue As Double ResultValue = AModel.Unreliability(100)