From help-request at octave dot org Sat Jun 26 21:51:05 2004 Subject: Octave 2.1.55: wrong type argument `matrix' From: "Paul C. Leopardi" To: help at octave dot org Date: Sun, 27 Jun 2004 12:56:50 +1000 Hi, I'm porting a set of Matlab scripts to Octave 2.1.55, and have encountered the following error message: error: octave_base_value::list_value(): wrong type argument `matrix' error: evaluating assignment expression near line 22, column 15 error: evaluating if command near line 19, column 1 The offending code is in the file expand_region_for_diam.m 1 function expanded_region = expand_region_for_diam(region) 15 fuzz = 100*eps; 16 dim = size(region,1); 17 s_top = region(dim,1); 18 s_bot = region(dim,2); 19 if dim > 1 20 region_1 = expand_region_for_diam(region(1:dim-1,:)); 21 expanded_region = [append(region_1, s_top), append(region_1, s_bot)]; 22 else 23 if s_bot == 0 24 s_bot = 2*pi; 25 end 26 if (mod(s_bot - s_top, 2*pi) < fuzz) || (mod(s_bot - s_top, 2*pi) > pi) 27 s_bot = s_top + pi; 28 end 29 expanded_region = [s_top, s_bot]; 30 end The function append is defined in append.m function result = append(A,value) result = [A; ones(1,size(A,2))*value]; 1. What does the error message "error: octave_base_value::list_value(): wrong type argument `matrix'" mean? 2. What am I doing wrong and how do I fix it? 3. Have I found a bug in Octave? ------------------------------------------------------------- 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 -------------------------------------------------------------