indicates whether the NODUPKEY option was used in a PROC SORT statement to
sort the input data set.
NPOS
physical position of the first character of the variable in the data set.
POINTOBS
indicates whether the data set can be addressed by observation.
PROTECT
the first letter of the level of protection. The value for PROTECT is one or more of
the following:
A
indicates the data set is alter-protected.
R
indicates the data set is read-protected.
W
indicates the data set is write-protected.
REUSE
indicates whether the space made available when observations are deleted from a
compressed data set should be reused. If the data set is not compressed, the REUSE
variable has a value of NO.
SORTED
the value depends on the sorting characteristics of the input ...
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