Two-way indicator species analysis (TWINSPAN) is a
Fortran-based
statistical analysis method described in 1979 by Hill.
It is widely used in
ecological
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps wi ...
research.
As of 1997, it was the only widespread standardized method to identify indicator plants.
References
Ecological data
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