The Weibull scale parameter for the given mean/median diameter and shape parameter.

Description

The function finds such scale parameter of the Weibull distribution that yields the given mean/median diameter. Function scaleDMean is used for arithmetic mean, scaleDGMean for the mean of basal-area weighted distribution, scaleDMed for median and scaleDGMed for the median of the basal-area weighted diameter distribution.

The functions are used in the recovery of Weibull parameters using function recweib.

Usage

scaleDMean(D,shape)
scaleDGMean(D,shape)
scaleDMed(D,shape)
scaleDGMed(D,shape)

Arguments

Value

Author(s)

Lauri Mehtatalo and Jouni Siipilehto

References

Siipilehto, J. and Mehtatalo, L. 2013. Parameter recovery vs. parameter prediction for the Weibull distribution validated for Scots pine stands in Finland. Silva Fennica 47(4), article id 1057.

See Also

recweib

Examples

scaleDMean(15,3)
scaleDGMean(15,3)
scaleDMed(15,3)
scaleDGMed(15,3)

Results