An Integrated Software for Population Genetics Data Analysis. The goal of Arlequin is to provide the average user in population genetics with quite a large set of basic methods and statistical tests, in order to extract information on genetic and demographic features of a collection of population samples.

The graphical interface is designed to allow users to rapidly select the different analyses they want to perform on their data. We felt important to be able to explore the data, to analyze several times the same data set from different perspectives, with different selected options.

The statistical tests implemented in Arlequin have been chosen such as to minimize hidden assumptions and to be as strong as possible. Thus, they often take the form of either permutation tests or exact tests, with some exceptions.

Finally, we wanted Arlequin to be able to handle genetic data under many different forms, and to try to carry out the same types of analyses irrespective of the format of the data.

Because Arlequin has a rich set of features and many options, it means that the user has to spend some time in learning them. However, we hope that the learning curve will not be that steep. A good way to start is to read the user manual.

Arlequin is made available free of charge, as long as we have enough local resources to support the development of the program.

Arlequin is the French translation of "Arlecchino", a famous character of the Italian "Commedia dell'Arte". As a character he has many aspects, but he has the capability to switch among them very easily according to its needs and to necessities. This polymorphic capability is symbolized by his colorful costume, from which the Arlequin icon was designed.

The license of this software is Freeware, you can free download and free use this calculator software.