Groups > comp.soft-sys.math.mathematica > #3105

Problem with Position

From	Dominic Wörner <dominic.woerner@mpi-hd.mpg.de>
Newsgroups	comp.soft-sys.math.mathematica
Subject	Problem with Position
Date	2011-06-15 11:20 +0000
Organization	Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID	<ita4ik$mac$1@smc.vnet.net> (permalink)

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Hi,

I have to import data from a csv file. And I get a structure data[[rows]]={first, second,...}.
Now I want to find the rows in which, say the first entry has a specific values.
By just looking at the data there are for example entries with value 0.785398.
But when I try Flatten@Position[data[[All,1]],0.785398] or with ToString[0.785398] I just get {}

What's the problem here?

Best,
Dominic

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Problem with Position Dominic Wörner <dominic.woerner@mpi-hd.mpg.de> - 2011-06-15 11:20 +0000

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