JSTOR Daily

Optimal Thresholds for a Mixture of Lognormal Distributions as the Continuous Part of the Mixed Distribution

Vol. 33, No. 12, HYDROLOGICAL AND METEOROLOGICAL ASPECTS OF RAINFALL MEASUREMENT AND PREDICTABILITY (December 1994), pp. 1543-1550 (8 pages) The paper considers a mixture of two and three lognormal ...
Simon Fraser University

Example 10.2: Estimating Parameters from Lognormal Plots

Note: You must specify a value for the shape parameter for a lognormal Q-Q plot with the SIGMA= option or its alias, the SHAPE= option. The plot in Output 10.2.2 displays the most linear point pattern ...
Simon Fraser University

Example 4.2: Fitting Lognormal, Weibull, and Gamma Curves

To find an appropriate model for a process distribution, you should consider curves from several distribution families. As shown in this example, you can use the HISTOGRAM statement to fit more than ...
Investopedia

Understanding Lognormal vs. Normal Distributions in Financial Analysis

Kristina Zucchi is an investment analyst and financial writer with 15+ years of experience managing portfolios and conducting equity research. Gordon Scott has been an active investor and technical ...
JSTOR Daily

On Fitting the Truncated Lognormal Distribution to Species-Abundance Data Using Maximum Likelihood Estimation

The truncated lognormal distribution can be used to graduate certain species-abundance data, provided that estimates of the location and scale parameters are obtained. A computer program has been ...
Risk

Treatment of the data collection threshold in operational risk: a case study using the lognormal distribution

There is some confusion among operational risk practitioners regarding the implications of the loss data collection threshold and the estimation of "truncated" or "shifted" distributions. Claims that ...