...from the Microcomputer Power website.

by Mark O. Hill

MS-DOS^TM adaptation by Charles L. Mohler

TWINSPAN is a FORTRAN program for two-way indicator species analysis.

TWINSPAN is an improvement upon the original indicator species analysis in that species are classified as well as samples (Journal of Ecology 63:597-603 and 69:537-557).

The result is similar to that obtained by Braun-Blanquet table arrangement:

The computer workload rises approximately linearly with the amount of data.

The MS-DOS^TM executable module is dimensioned for 800 Pseudospecies, 500 Samples, 30,000 non-zero array elements.

              11  1
              219807631245

 9 SOLI SEM   211-3-------  0000
 5 PHRA COM   53415-------  0001
 3 IVA  FRU   452113------  0010
11 SPAR PAT   3254-5------  0011
 8 SCIR OLN   -1---53-----  01
 2 DIST SPI   -5414545-424  100
 1 ATRI PAT   231--3221411  101
 6 SALI EUR   ----22-23411  1100
10 SPAR ALT   --142-135553  1101
 7 SALI VIR   ----------34  1110
12 SUAE MAR   ----------54  1110
 4 JUNC GER   -----151----  1111

              000000111111
              000001001111
              00011 010011
              00101   0101
              01

Order Form/Price Sheet
This page last rendered at Ithaca, NY Thursday, August 14, 1997 2:52 AM