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Re: Re: How to read mixed-type data from external files?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg37805] Re: [mg37733] Re: How to read mixed-type data from external files?
  • From: Dale Horton <daleh at wolfram.com>
  • Date: Wed, 13 Nov 2002 01:12:52 -0500 (EST)
  • References: <aqdjo0$si$1@smc.vnet.net> <aqfo6s$71d$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

CSV was added in 4.1. In 4.0, most of the time Table format will do the trick.

Import["data.csv", "Table",
   ConversionOptions -> {"TableSeparators" -> {{"\n", "\r"}, {","}}}]

-Dale

At 04:38 AM 11/10/2002, Wen-Feng Hsiao wrote:
>Thanks for all your helps.
>
>I am using Mathematica 4.0. It might not support Import function,
>since the expression you proposed to me cannot work.
>
>In[2]:=
>Import["data.csv"]
>
>Import::guess: Could not guess format from channel data.csv.
>
>Out[2]=
>Import["data.csv"]
>
>In[3]:=
>Import["data.csv", "CSV"]
>
>Import::format: "CSV" is not a recognized Import format.
>
>Out[3]=
>Import["data.csv", "CSV"]
>
>Fortunately, Sseziwa's method works fine to me.
>
>{ToExpression[#[[1]]],#[[2]],Sequence@@Table[ToExpression[#[[i]]],{i,3,8
>}]}&/
>@ReadList[strm,Word,WordSeparators\[Rule]{","},RecordLists\[Rule]True]
>
>
>Wen-Feng Hsiao
>
>----------
>Jens-Peer Kuska <kuska at informatik.uni-leipzig.de> wrote in message 
>news:<aqfo6s$71d$1 at smc.vnet.net>...
> > Hi,
> >
> > Import["data.css", "CSV"]
> >
> > ??
> >
> > Regards
> >   Jens
> >



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