Applications that Process Groups of NDFs

The majority of applications with NDF parameters use each NDF parameter to access a single NDF, and supplying more than one NDF will result in the application being re-run as described above. The application then accesses a single NDF on each invocation. Some applications, however, have NDF parameters that are explicitly described in the reference section of this document as being associated with a group of NDFs. An example is WCSALIGN that has a Parameter IN to read a group of NDFs that are to be aligned with each other. Such applications process all the specified NDFs in a single invocation. For the purposes of the multiple invocation scheme described above, such parameters are not considered to be `NDF' parameters, and will not cause the application to be re-run.