# Life Data Analysis (Weibull Analysis)

## Visual Demonstration of the Effect of Parameters on the Distribution

As a supplement to the Life Data Analysis Basics
quick subject guide, these three plots demonstrate the effect of the shape, scale and
location parameters on the Weibull distribution probability density
function (*pdf*).

Other life distributions have one or more parameters that affect the shape, scale and/or location of the distribution in a similar way. For example, the 2-parameter exponential distribution is affected by the scale parameter, (lambda) and the location parameter, (gamma). The shape of the exponential distribution is always the same.

**Weibull Shape Parameter **

This plot demonstrates the effect of the shape parameter,
(beta), on the Weibull distribution.

**Weibull Scale Parameter **

This plot demonstrates the effect of the scale parameter,
(eta), on the Weibull distribution.

**Weibull Location Parameter **

This plot demonstrates the effect of the location parameter,
(gamma), on the Weibull distribution.

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Subject Guide**