Reliability and Survival Methods • Destructive Degradation • Statistical Details for Destructive Degradation Models
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Statistical Details for Destructive Degradation Models
The destructive degradation model can be expressed as follows:
where:
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g(Y) is the transformed Y variable
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F is the selected probability distribution
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is the location parameter, defined by h
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h is a function that relates the transformed Time variable and the explanatory variable X
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is the scale parameter of the distribution
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f(Time) is the transformed Time variable
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X is an optional explanatory variable
The standardized residuals are obtained as follows:
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For location-scale distributions, the standardized residuals are (y-μ)/σ.
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For log-location-scale distributions, the standardized residuals are (log(y)-μ)/σ.

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Help created on 9/19/2017