TSKFAC creates a task factor that can be used as a masking factor in other programs. The output factor is NOT a membership mask. It is simply a NTASK- length factor of real numbers, restricted to ones and zeroes. The user specifies a task list which determines those tasks that are set to a value of 1.0.

Program Invocation
The specific syntax for program invocation varies between operating systems. This document diplays the code for the AIX version.
opt: None currently supported ssss: The study number TT: Input Task Title file, required to determine number of tasks and other communications region information. TFf: Output Task Factor file
Title Card
This card assigns a title to the output task factor.
TITLE: cc 01-05 The literal "TITLE" title: cc 07-66 The output factor title
Task Cards
These cards define which tasks will have a value of one.
task: cc 01-04 The task number to set to one. If using a range, this specifies the lower limit. '-': cc 05 The literal '-' if specifying a range taskul: cc 06-09 The upper limit task number if specifying a range.
@codap tskfac - ssss tt000 tf100 1- 7 12 14-88 92 95 97 - 100 123 133- 137 199 200 201 @EOF
This example creates a new task factor, where the values for tasks 1-7, 12, 14- 88, 92, 95, 97-100, 123, 133-137, and 199-201 will be 1.0. All other tasks (determined by the number of tasks in Task Title file tt000) will have a value of 0.0. The output factor will be named TFnnnn/FAC, where nnnn is the next available TF sequence number in file tf100.
Note that the specified task numbers may be free format within their respective fields, i.e., leading and/or trailing spaces are allowed. However, if a range is specified, the dash must be located in column five.