I'll start by stating that this isn't a hard problem but one that is
a hurdle for most people because there is so much going on with the
data structures. I'd like to tell you, your best bet if you're going
to use OpenDX much would be to purchase a copy of our book "OpenDX:
Paths to Visualization". One of the chapters deals with
ImportSpreadsheet and the problem you're having. Once you have your
data in, you're going to need to use Mark a bunch as well as a
compute. Without our book, your best bet is to refer to the mailing
list archives. Chris did a nice job explaining this to someone else
earlier
(http://opendx.npaci.edu/mail/opendx-users/2002.01/msg00085.html).
David
Thanks for the help to date, but I'm now stuck trying to use
ImportSpreadsheet.
I have set up importspreadsheet to read in the data instead of import (as
suggested below), but can't find much in the documentation to help me do
anything with it. What do I do with the output from
ImportSpreadsheet to define
the first three columns as the X, y and Z positions? I've labelled them as X Y
Z catch & prop in Import Spreadsheet, but now what?
I need to use the catch column as the size control in Glyph & the prop column
as the control for color in ColourMap, and have the Glyphs plotted at the XYZ
locations.
There are no connections, performance isn't an issue and there are only a
couple of hundred samples per file so I can't see any advantage in exporting a
DX format of each file. Please correct me if I'm wrong in this.
This is a problem if you're bringing these in as a general format.
The problem is, they will get built as two separate fields and you
will have to use Select to get to each of them. The problem is, then
you have problems using one for size and one for color. You're better
off using ImportSpreadsheet where you get the two columns as separate
components into one field. Then you can use Mark to do what you want
easily.
__________________________________________________
Do You Yahoo!?
Yahoo! Movies - coverage of the 74th Academy AwardsÆ
http://movies.yahoo.com/
--
.............................................................................
David L. Thompson Visualization and Imagery Solutions, Inc.
mailto:[EMAIL PROTECTED] 5515 Skyway Drive, Missoula, MT 59804
Phone : (406)257-8530
