Date: Mon, 24 Sep 2001 13:02:53 -0700
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: "David L. Cassell" <Cassell.David@EPAMAIL.EPA.GOV>
Subject: Re: Compress=Binary and WinZip
Content-type: text/plain; charset=us-ascii
Roger DeAngelis wrote [in part]:
> Sometimes the compress=binary option produces a file that WinZip cannot
> compress into a smaller file.
Excellent! I'm really glad to hear that, because my experiences with
compress=binary have been *lousy* - due to the nature of the data set.
I have even gotten a rousing 2% INCREASE when using compress=binary on
a dataset where there are a lot of numerics but not a lot of pattern within
> It is interesting thet the Zipped version of the compress=binary
> SAS Table is larger then source SAS Table(Compress=binary).
Yes, that's a common problem when trying to compress a file which has, in
essence, been compressed as far as is reasonable without losing
For fun, do a maximal Zip of a file, then try to compress that zipped file
even further. You'll usually do a little worse.
Thanks for the info,
David Cassell, CSC
Senior computing specialist