Table extraction
- To: mathgroup at smc.vnet.net
- Subject: [mg19141] Table extraction
- From: Maurice Shevalier <maurice at phas.ucalgary.ca>
- Date: Thu, 5 Aug 1999 23:58:44 -0400
- Organization: Physics & Astronomy, The University of Calgary
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
I am trying to extract a section of a table with not much luck....
I have defined two tables (actually two arrays which are used to plot
vectors with ListPlotVectorField) as follows:
xyvector = Table[{0.,0.},{j,1,64},{i,1,320}];
backvector = Table[{0.,0.},{j,1,16},{i,1,100}];
I need to extract part of xyvector and place it into backvector. I have
tried to use Part. I can extract the j range correctly (rows), but I
can't get the Part function to extract in the i range (columns).
I tried using Part[xyvector,{2,3}] which extracts 2 rows but I cannot
figute out how to extract the necessary columns
Can anyone help?
Thanks,
Maurice
--
Maurice Shevalier | .~.
Ph.D. Candidate | /V\ L I N U X
Dept. of Physics and Astronomy | // \\ >The Penguin, The Slayer?<
University of Calgary | /( )\
Calgary, AB, CANADA T2N-1N4 | ^^-^^
(403)220-7873 fax:(403)284-0074 |
e-mail: maurice at phas.ucalgary.ca