SNAMES Specification (MATRIX-END MATRIX command)

To write a matrix-format data file with split-file groups, you can use the SNAMES specification to provide variable names for the split-file variables.

• The variable list following the keyword SNAMES is a list of valid variable names separated by commas.
• If you omit the SNAMES specification, the default names SPL1, SPL2, ..., etc., are used.