Prev: Quotations
Next: loadlibrary - function not found
From: Aman on 1 Jul 2010 18:43
function s_path = KShortestLink(G,k,u,v)
NoN = size(G,1);%no of nodes in graph
NoN
s_path= zeros(k,NoN);
for p = 1:k
[dist, path]= graphshortestpath(G, u, v);
if (dist~=inf)
n = size(path);
s_path(p,1:n)= path;
for i = 1:n-1
G(path(i),path(i+1))=0;
G(path(i+1),path(i))=0;
end
end
end
=================================
clc;
G = [ 0 1 1 0 ;1 0 1 1 ;1 1 0 1 ;0 1 1 0 ];
k = 2;
u = input('Enter a value\n');
v = input('Enter a value\n');
G=sparse(G);
s_path = KShortestLink(G,k,u,v)

========while i am running this program and calling the function KShortestLink ..
This error msg shows. What does it mean and how does it will resolves?


??? Subscripted assignment dimension mismatch.

Error in ==> KShortestLink at 12
s_path(p,1:n)= path;

Error in ==> short_path at 7
s_path = KShortestLink(G,k,u,v)
From: us on 1 Jul 2010 18:56
"Aman " <am.amangupta(a)gmail.com> wrote in message <i0j5lo$hdi$1(a)fred.mathworks.com>...

> n = size(path);
> s_path(p,1:n)= path;

> ??? Subscripted assignment dimension mismatch.
>
> Error in ==> KShortestLink at 12
> s_path(p,1:n)= path;

according to the description of GRAPHSHORTESTPATH (we do not have the tbx), PATH is a ROW vec...
hence,

p=1:4;
n=size(p)
% n = 1 4 % <- #rows/#cols
% thus, try
n=size(p,2)
% n = 4

us
From: Jan Simon on 1 Jul 2010 19:02
Dear Aman,

> [dist, path]= graphshortestpath(G, u, v);
> if (dist~=inf)
> n = size(path);
> s_path(p,1:n)= path;

> ??? Subscripted assignment dimension mismatch.

Set a breakpoint in the line "n = size(path)".
If the debugger stops the execution in this line, process this line (either by using the correcponding button or typing DBSTEP in the command window).
Now display the value of [n]:
disp(n)
Finally, you should understand, why the dimensions of (p, 1:n) and [path] do not match.

BTW: Using "path" as name of a variable conflicts with Matlab's function called "path". It would be really worth to avoid this.

Jan
 | 
Pages: 1
Prev: Quotations
Next: loadlibrary - function not found