Program TRANSECT

Program TRANSECT is a FORTRAN 77 code to analyze line transect data as
described by Burnham et al. (1980). Both perpendicular distances and
sighting angle and sighting distance data can be analyzed with TRANSECT.
Program TRANSECT is set up to run with PC/MS-DOS with at least 512k of
memory and preferably a 8087 math coprocessor.

To execute TRANSECT in interactive mode, just type:

a:transect

with the TRANSECT disk in drive a. TRANSECT will provide a series of menus
to create an input file for the program. The user can inter-actively enter
data at the keyboard, or, for ungrouped data, request the program to readthe data from a file. When TRANSECT is executed in the interactive mode,
an output file named TRAN00.INP will be created for so that the user can
use this file for later input in batch mode. Should the file TRAN00.INP
already exist on the current directory, the file TRAN01.INP will be created
instead, leaving TRAN00.INP untouched. Up to 99 files can be created in
this manner. The line transect analysis will be shown on the user's
screen.

To execute TRANSECT in batch mode, type:

a:transect i=in_file o=out_file

where in_file contains the input commands and data for TRANSECT (see Laake
et al. (1979)) and out_file contains the output from TRANSECT. If the o=
parameter is not specified, the output is shown on the screen. The file
EXAMPLE on the TRANSECT diskette contains an example data set from Burnham
et al. (1980) to test the executable TRANSECT.EXE . In addition, any files
created in interactive mode can be executed in batch mode using the i= and
o= parameters.

Four additional documentation files are included with TRANSECT. These
files must be kept in the same directory as the TRANSECT.EXE file. To
allow TRANSECT to locate these files for inclusion in the output, the user
should not place TRANSECT in a sub-directory unless this sub-directory is
included in the DOS PATH command. See the DOS manual for information on
how to set up PATHs.

An additional file on the TRANSECT source diskette is RMFORT.ERR .
This file is a list of FORTRAN errors that accompany the Ryan-McFarland
FORTRAN Compiler. If the RMFORT.ERR file is in the local directory when
TRANSECT is executed, any run time error messages will include an
informative message as well as an error number.

The dimensions of TRANSECT can be changed by modifying the parameter
statements in PARMTR.INC on the source diskette. The redimensioned program
can then be recompiled and linked with the make utility and the makefile
provided with the source code. The NOLIMIT FORTRAN library from M|F|E
Environmental Inc. must be included in the library search to obtain screen
manipulation capability.

To report bugs or other problems with this software, contact:
Gary C. White
Department of Fishery and Wildlife Biology
Colorado State University
Fort Collins, CO 80523
(303)491-6678

Literature Cited

Burnham, K. P., D. R. Anderson, and J. L. Laake. 1980. Estimation of
density from line transect sampling of biological populations. Wildl.
Monograph 72:1-202.

Laake, J. L. 1979. User's Manual for Program TRANSECT. Utah State Univ.