The Lognormal distribution is based on the Normal distribution. A random variable is lognormally distributed if the logarithm of the random variable is normally distributed.
EasyFit allows to automatically or manually fit the Lognormal distribution and 55 additional distributions to your data, compare the results, and select the best fitting model using the goodness of fit tests and interactive graphs. Watch the short video about EasyFit and get your free trial.
EasyFit displays all graphs and properties of the Lognormal distribution, presenting the results in an easy to read & understand manner. EasyFit calculates statistical moments (mean, variance etc.), quantiles, tail probabilities depending on the distribution parameters you specify.
You can easily generate random numbers from the Lognormal distribution in a variety of ways:
EasyFitXL enables you to use the following functions in your Excel sheets and VBA applications:
LognormalPdf |
Probability Density Function |
LognormalCdf |
Cumulative Distribution Function |
LognormalHaz |
Hazard Function |
LognormalInv |
Inverse CDF (Quantile Function) |
LognormalRand |
Random Numbers |
LognormalMean |
Mean |
LognormalVar |
Variance |
LognormalStdev |
Standard Deviation |
The Lognormal distribution has widespread application. It is extensively used for reliability analysis. It can also be used to model: