N.B. This option is rarely used.
Under non-standard input but with all O-D elements included, data must be ordered by destination within origin; i.e., a complete set of destination data for origin 1 on one or more records, followed by the records for origin 2, etc., etc. All NROWS*NCOLS elements must be included. User-set sub-options allow:
a) A fixed number of initial records to be skipped before origin 1 data, e.g., to allow for header records;
b) A fixed number of initial numerical data entries within each origin set to be skipped, e.g., to allow for zone names, purpose codes, etc.
c) A FORTRAN-style Format of the origin data sets, e.g., 10I5 for 10 INTEGER data entries per record, 5 columns each.
d) The number of rows and columns (i.e., zones) if not already specified.
An example of such a data file with two header records, 8 rows and a single column header entry per origin and format 6I5 might be:
Jonesville observed trips
15 January 1993
5 0 6 2 3 1
0 1 5
10 6 0 2 3 1
0 1 5
…
Thus the first zone is zone 5 with I-j elements (0.6…5), the second is zone 10 with elements 6, 0…5). Whether or not the numerical entries are “real” or not (i.e. have decimals or not) is determined by the format which follows standard FORTRAN rules.