Parameters

The parameters are read from a .tsv file that can be modified with any text editor (you can separate the value from the name of the parameter using tabs or blank spaces, Zombi reads both) Some of the parameters accept variable values. Those parameters can be easily seen in the parameters file because they have values composed of a letter and some numbers. For instance:

SPECIATION f:4

EXTINCTION n:2;0.5

The letter before the colon indicates the distribution (f fixed, u uniform, n normal, l lognormal, e exponential, g geometric). The parameters of the different distributions are separated by semicolons.

If you launch Zombi in the T mode with those parameters, the speciation rate will be 4, and the extinction rate will be sampled once at the beginning from a normal distribution of mean 2 and standard deviation 0.5.

Watch out! If the sampled value is negative, the returned value will be the absolute value