When you request a lognormal probability plot, you must specify the shape parameter for the lognormal distribution (see Table 9.13 for the equation). The value of must be positive, and typical values ...

This example is a continuation of "Creating Lognormal Probability Plots". Figure 9.4 shows that a lognormal distribution with shape parameter is a good fit for the distribution of DIAMETER in the data ...

At many physiological and anatomical levels in the brain, the distribution of numerous parameters is strongly skewed with a heavy tail and typically follows a lognormal distribution. The power and ...

The generation of custom graphs with Microsoft Excel enables an engineer or analyst to plot untransformed data for gaining an understanding of problems related to oil and gas operations. Graphs have a ...

The lognormal-gamma distribution, being a heavy-tailed distribution, is very attractive from an operational risk modeling perspective because historical operational losses also exhibit heavy tails.

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 ...