| TWINSPAN (Hill
1979) is one of the classification utilities most widely
used by phytosociologists and vegetation ecologists. This
application is included as an external, free program
managed by JUICE. Before running the program open the
input form (menu ANALYSIS and TWINSPAN), make sure the
appropriate colour is set (you can TWINSPAN all relevés
or a selected group), and specify the cut levels, minimum
group size and maximum level of divisions (values of
pseudospecies cut levels must be separated by one space).
Check Species sorting if you want to have the species
rearranged by TWINSPAN (we recommend that you sort
species after running TWINSPAN by Synoptic table sorting).
Check Make separators, if you want to show TWINSPAN
groups. After pressing Run TWINSPAN a temporary Cornell
condensed file is created and the TWINSPAN application is
started. After classification is terminated JUICE loads
the results and sorts the table. Standard TWINSPAN output
and solution files (*.TWI and *.PUN) are created in the
working directory. The solution file contains both sample
and species classifications in a form which can be loaded
into a database or statistics program for further
analysis. Warning! TWINSPAN is an external application. Please, use the button Change path, if the analysing process will not terminate. Any problems with TWINSPAN running, however, will not affect the JUICE program (JUICE only loads TWINSPAN results). |
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