Lognormal Distribution
If a random variable has a Lognormal distribution, then its natural logarithm has a Normal distribution. This is the meaning of the term Lognormal.
Like the Exponential distribution, the Lognormal distribution can only be used for variables which are always positive.
A Lognormal distribution can be used for modeling variables which have a peak in the distribution near zero, and then gradually decrease for larger values. For joint networks, this may be useful for modeling joint length, spacing or persistence.
![lognormal_dist](https://static.rocscience.cloud/assets/help/rs3/figures/GIFs/fig_lognormal_dist.gif)