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# Sal

19 total contributions since 2008

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Responded

Re: Matrix manipulation...
Nathan I greatly Appreciate your help I had been stuck on this for a while. Best, sal

6 years ago | 1101 views

Posted

Matrix manipulation...
I have been trying to manilapulate a very large matrix. In the following manner--- As an example = b = [ 1 2 3 8 6 5; 3 4 5 6 ...

6 years ago | 1101 views

Responded

Re: Matrix manipulation
Thank you guys for the file made available in exchange....Thanks for the suggestions Sal

8 years ago | 872 views

Posted

Matrix manipulation
Hello everyone I have been beating my head on how to perform the following: I have a matrix A A = [1 2 3 4 5; The objective i...

8 years ago | 872 views

Responded

Re: node-node adjacency matrix to a node-arc adjacency matrix
This is my code: sM = zeros(1,m); sN = zeros(n+1,1); As = A; As(m+1,:) = sM; As(:,n+1) = sN; NZ=nonzeros(As); Edc=length(NZ); ...

8 years ago | 2853 views

Posted

node-node adjacency matrix to a node-arc adjacency matrix
I have been trying to figure out how to create a arc-node adjacency matrix from a node-node adjacency matrix, for example: node...

8 years ago | 2853 views

Responded

Re: Matrix manipulation
I have had the following code before I posted this to see if there was a more efficient (that is, computational savings) to solv...

8 years ago | 959 views

Responded

Re: Matrix multiplication issues...
Thank you...It works perfectly. I used for loops to try to solve this but it took sometime to solve.

8 years ago | 1006 views

Posted

Matrix manipulation
I have a matrix A: A = [1 2 5 6;7 6 4 2;8 9 7 8] I want to produce the following matrix; A = [1 0 0 0;0 0 0 2;0 0 7 0] which...

8 years ago | 959 views

Posted

Matrix multiplication issues...
I have the following matrix and vector: A=[0 1 1 1;0 1 1 0;0 0 0 0;0 0 0 0]; x=[1 3 2 4 5]; Basically I want every element of ...

8 years ago | 1006 views

Responded

Re: Matrix operations
Thank you very much Bruno.. Sal

8 years ago | 1143 views

Responded

Re: Matrix operations
Thank you very much Jos, this is perfect. Sal

8 years ago | 1143 views

Posted

Matrix operations
Hello Everyone... Im trying to figure out the following in Matlab.. I have a matrix A, A = [2 0 0 2;0 3 4 7;0 4 2 1;5 0 5 0] -...

8 years ago | 1143 views

Posted

Network Generator
Hello, Does anyone know where I can find an example code for a node-node adjacency matrix generator (that is, a network generat...

8 years ago | 854 views

Responded

Re: Matrix operation
Thank you Walter...I see now. Sal

8 years ago | 564 views

Responded

Re: Matrix operation
I got it.....Sorry

8 years ago | 564 views

Posted

Matrix operation
How can I do the following using matlab: I have the following matrix: A= I want to convert this to convert this to the follow...

8 years ago | 564 views

Responded

Re: Coding Issue....
Thank you very much, yes the number of non-zero elements will always be equal to the length of x...I can't thank you enough... S...

8 years ago | 814 views

Posted

Coding Issue....
If anybody could help me on this it will be greatly appreciated: what I'm trying to do is the following: I have the following...

8 years ago | 814 views