Statistics on presence-absence (version 0.0.0)

Input table:

First line is a header line:

Select a column containing numerical values (such as the abundance) :

Select the column of the x-axis : most commonly species:

Variable for dispersion plot and to see the correlation between zeros

Select column containing locations :

Select column containing temporal data (year, date, ...) :

Create a boxplot, visualize the dispersion of a numeric variable and visualize correlation between species absences

What it does

This tool creates:

A boxplot of a numerical value (like the abundance) and a dispersion plot of this value according to a variable such as species.
A correlation plot using the presence of zeros in the numerical value. Handy to see if there is a correlation between the absence of two species and suggest a co-dependency.

Don't use datasets with too much species, it won't be readable.

Input description

A tabular file with observation data. Must at least contain four columns a numerical value (ex: abundance), a temporal referential (year, date, ...), locations and species.

number	time	species.code	location
2	date	speciesID	site
...	...	...	...

Output

Two png files containing the three plots.