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Observations

An MPS-format data set contains six variables : field1, field2, field3, field4, field5, and field6. The variables field4 and field6 are numeric type; the others are character type. Among the character variables, only the value of field1 is case-insensitive and leading blanks are ignored. Values of field2, field3, and field5 are case-sensitive and leading blanks are NOT ignored. Not all variables are used in a particular observation.

Observations in an MPS-format SAS data set are grouped into sections. Each section starts with an indicator record, followed by associated data records. Indicator records specify the names of sections and the format of the following data records. Data records contain the actual data values for a section.