SPMquotcall_udi" is a UNIX command-line interface to the UDI routines which
allows one to operate upon data files using the UDI library routines,
without needing to write a C program. Data is input in from zero to three
files in either ASCII or binary form. The first file is read from
the standard input, and the other two files can be specified with flags on
the command line. Input scalars and flags to the UDI function can also be
specified on the command line. The output from the call to the UDI
function is written to the standard output in ASCII or binary form. Any
output scalars are written to the standard error output, although it is
an exceptional case where a UDI function will output anything except
a vector or matrix. It's possible to start reading from the input files
at an offset and to read only a specified number of data elements.
The standard UDI input/output routines are used to read and write the
data files, with the default file format being SPMquotUDI_FILE_BIN".
With flags it's possible to specify SPMquotUDI_FILE_ASCII" and
SPMquotUDI_FILE_ASCII_N" formats for either input or output.
One can specify an increment on the input files as if one were using windows.