Re: ReadList
- To: mathgroup at smc.vnet.net
- Subject: [mg18896] Re: ReadList
- From: "P.J. Hinton" <paulh at wolfram.com>
- Date: Mon, 26 Jul 1999 14:27:42 -0400
- Organization: "Wolfram Research, Inc."
- References: <7n673v$gqg@smc.vnet.net> <7n8m8p$k83@smc.vnet.net> <3799AD6D.73A96537@bellsouth.net>
- Sender: owner-wri-mathgroup at wolfram.com
On Sat, 24 Jul 1999, Mark Fisher wrote:
> In Mathematica 4, you can use Import[] to read in the file and let
> the the kernel try to parse things automatically.
>
> In[3]:= Import["datafile.txt", "Table",
> ConversionOptions -> {
> TableSeparators -> {{"\n"}, {"\t", " "}}
> }
> ]
>
> It's not exactly clear to me what's going on with the options here. Can
> you tell us where we can read more about ConversionOptions?
Actually, there is a typo in the quoted code snippet above. The option
name TableSeparators should be a string:
"TableSeparators" -> {{"\n"}, {"\t", " "}}
The value for this option is a list with two elements of arbitrary length
and one dimension. The first sublist contains strings which will be used
by Import[] to delimit record separators. The second list is similar,
except that it lists field separators.
The documentation for these and other format-specific options can be found
in the online documentation exclusively. Look under the reference guide
entries for Import[] an Export[]. At the end of each entry, you will find
expandable sections named "Additional Information". Click on the
open/close icon to the left of the heading to expose the relevant content.
--
P.J. Hinton
Mathematica Programming Group paulh at wolfram.com
Wolfram Research, Inc.
Disclaimer: Opinions expressed herein are those of the author alone.