[patch #6245] Perl Module

[John Darrington]

Follow-up Comment #3, patch #6245 (project pspp):

Ben writes:
 The paragraphs following "=head2 Variables with differing input and output
formats" don't make much sense to me. I don't understand where input formats
come into the picture.

Sometimes it's useful to create data using one particular format, but that's
intended to be read in another.  Dates are the most common example (that I can
think of).  For a programmer, it's convenient to represent dates numerically. 
But presumably he intends them to be interpreted as date values.  So the input
format is F8.2, but the output format is DATETIME22, for example.

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