Normal

+ create: (id <Zone>)aZone setGenerator: (id <SplitRandomGenerator>)splitGenerator setVirtualGenerator: (unsigned)vGen setMean: (double)mean setStdDev: (double)sdev
Use this create message if the generator to be attached is a Split one and you wish to specify the standard deviation:

+ create: (id <Zone>)aZone setGenerator: (id <SplitRandomGenerator>)splitGenerator setVirtualGenerator: (unsigned)vGen setMean: (double)mean setVariance: (double)variance
Use this create message if the generator to be attached is a Split one and you wish to specify the variance:

+ create: (id <Zone>)aZone setGenerator: (id <SimpleRandomGenerator>)simpleGenerator setMean: (double)mean setStdDev: (double)sdev
Use this create message if the generator to be attached is a Simple one and you wish to specify the standard deviation:

+ create: (id <Zone>)aZone setGenerator: (id <SimpleRandomGenerator>)simpleGenerator setMean: (double)mean setVariance: (double)variance
Use this create message if the generator to be attached is a Simple one and you wish to specify the variance:

- setMean: (double)mean setStdDev: (double)sdev
The setMean:setStdDev: method sets the mean and the standard deviation of the distribution.

- setMean: (double)mean setVariance: (double)variance
The setMean:setVariance: method sets the mean and the variance of the distribution.

- (double)getSampleWithMean: (double)mean withStdDev: (double)sdev
The getSampleWithMean:withStdDev: method returns a sample value drawn from a distribution with the specified mean and standard deviation.

- (double)getSampleWithMean: (double)mean withVariance: (double)variance
The getSampleWithMean:withVariance: method returns a sample value drawn from a distribution with the specified mean and variance.

- (double)getStdDev
The getStdDev method returns the standard deviation of the distribution.

- (double)getVariance
The getVariance method returns the variance of the distribution.

- (double)getMean
The getMean method returns the mean of the distribution.