From bug-request at octave dot org Wed Jan  5 10:24:26 2005
Subject: octave bugs version 2.1.50
From: Mauricio Oliveira <mauricio dot oliveira at nova-sol dot com>
To: bug-octave at bevo dot che dot wisc dot edu
Date: Tue, 4 Jan 2005 19:33:58 -0600

=======================================================

1st bug

I try to run the interp2.m function and it gave me the same results as 
typing "help find".

you just have to type

 >> interp2(1,1) 


this is the results

-------------------------------------------------
*** find:

  - Loadable Function:  find (X)
      Return a vector of indices of nonzero elements of a matrix.  To
      obtain a single index for each matrix element, Octave pretends
      that the columns of a matrix form one long vector (like Fortran
      arrays are stored).  For example,

           find (eye (2))
           => [ 1; 4 ]

      If two outputs are requested, `find' returns the row and column
      indices of nonzero elements of a matrix.  For example,

           [i, j] = find (2 * eye (2))
           => i = [ 1; 2 ]
           => j = [ 1; 2 ]

      If three outputs are requested, `find' also returns a vector
      containing the nonzero values.  For example,

           [i, j, v] = find (3 * eye (2))
           => i = [ 1; 2 ]
           => j = [ 1; 2 ]
           => v = [ 3; 3 ]



Additional help for built-in functions, operators, and variables
is available in the on-line version of the manual.  Use the command
`help -i <topic>' to search the manual index.

Help and information about Octave is also available on the WWW
at http://www.octave.org and via the help-octave at bevo dot che dot wisc dot edu
mailing list.
error: string type invalid as index value
error: evaluating postfix operator `'' near line 120, column 24
error: evaluating assignment expression near line 120, column 8
error: called from `interp2' in file 
`/opt/octave/share/octave/2.1.50/site/m/octave-forge/general/interp2.m'

------------------------------------------------


there are 2 lines on the interp2.m file that needs to be modified
line 121 and 129 approx. says the following

xidx = o([find (n > xtlen)])';
and
yidx = o([find (n > ytlen)]);

these lines don't work.  to fix it, you need to delete the space after 
"find"

the new lines should read it

xidx = o([find(n > xtlen)])';
yidx = o([find(n > ytlen)]);

==============================================================
bug 2

When I try to run griddata the it gives the following error message

 >> griddata(1,2,3,2,3)
error: `delaunayn' undefined near line 51 column 13
error: evaluating assignment expression near line 51, column 11
error: evaluating if command near line 50, column 5
error: evaluating if command near line 49, column 3
error: called from `delaunay' in file 
`/opt/octave/share/octave/2.1.50/site/m/octave-forge/geometry/delaunay.m'
error: evaluating assignment expression near line 52, column 6
error: called from `griddata' in file `/octave_files/griddata.m'

griddata.m calls delaunay.m which calls delaunayn.m but this file is not 
included with Octave.


does any one know how to get delaunayn.m file?

thanks

-- 
Mauricio Oliveira
Electrical Engineer
www.nova-sol.com
(808) 441-3673 tel
(808) 441-3601 fax
mauricio dot oliveira at nova-sol dot com



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------