The Z
w.
d format
writes standard numeric values one digit per byte and fills in 0s
to the left of the data value.
The Z
w.
d format
rounds to the nearest number that will fit in the output field. If
w.
d is
too large to fit, SAS might shift the decimal to the BEST
w. format. The Z
w.
d format writes negative
numbers with leading minus signs. In addition, it right aligns before
writing and pads the output with leading zeros.