Dropping Similar Numbers from List
- To: mathgroup at smc.vnet.net
- Subject: [mg60564] Dropping Similar Numbers from List
- From: "andre" <erasmus.the.giant at gmail.com>
- Date: Tue, 20 Sep 2005 05:19:43 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
My data set has some numbers which differ by a small amount, say one
part in 10^-15, that I don't want to appear more than once. If they
were identical, I would just use Union[data] and be finished. Is there
a way to set a tollerance for the Union function?
I tried to use SetPrecision to get rid of the unwanted extra digits,
but Union[SetPrecision[data,n]] gives the same result as Union[data].
What exactly does SetPrecision do? It seems that it's not just
dropping the digits beyond the limit I set.
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