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Article #34

Integer data in S

#34
From: Peter Guttorp
Date: Wed, 18 Jul 1984 05:48
15 lines
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One needs to be careful when reading in data without decimal points to S.
For example,
	1833008*2154246/2172348
evaluates to
	771.15
whereas
	1833008/2172348*2154246
evaluates (as was intended) to
	1817734

Apparently multiplication of integers is done mod 2^32, whereas on division
integers are changed to reals (of course, there is a separate integer
divide if one wants to actually do that). I find this feature a bit
disturbing, as I often work with data that are recorded in integer format,
but really will be treated as real. 
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Posting-Version: version B 2.10.1 6/24/83; site entropy.UUCP
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From: peter@entropy.UUCP (Peter Guttorp)
Newsgroups: net.math.stat
Subject: Integer data in S
Message-ID: <47@entropy.UUCP>
Date: Wed, 18-Jul-84 01:48:13 EDT
Article-I.D.: entropy.47
Posted: Wed Jul 18 01:48:13 1984
Date-Received: Fri, 13-Jul-84 03:33:10 EDT
Organization: UW MathStat, Seattle
Lines: 15