Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: data extraction from matrix to use in another matrix
Replies: 26   Last Post: Oct 22, 2013 4:57 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
walter Mulvany

Posts: 14
Registered: 10/19/13
Re: data extraction from matrix to use in another matrix
Posted: Oct 20, 2013 8:23 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

I'm very sorry to say that it did not work because it arranged the matrices.
I need to go to matrix (connect) element 1, read node(a) and see that is a 4, because is the node 4, then I need to go the the matrix (coordinates), look for the node 4, and extract from node 4 the coordinate (x) and place it on an array nodeax.
repeat the process with all the elements.
As you can see, when the code reaches element 4, the node is 4 as well as element 1.
This has to be done for each of the elements from 1 to n (11) in this case.

Elem (a) (b)
1 4 2
2 2 3
3 3 4
4 4 7
5 3 7
6 3 6
7 6 2
8 5 2
9 1 5
10 5 6
11 6 7

Node X Y
1 0 0
2 2 0
3 4 0
4 6 0
5 1 1
6 3 1
7 5 1

The final matrix should look like this
Elem Nodea Nodeb Nodeax
1 4 2 0 0
2 2 3 2 0
3 3 4 4 0
4 4 7 6 0
5 3 7 4 0
6 3 6 4 0
7 6 2 3 1
8 5 2 1 1
9 1 5 0 0
10 5 6 1 1
11 6 7 3 1
I hope I'm explaining it better now, I realize that I was not clear in the way I expressed the problem.
Thanks again for your time and for doing this for me.


Date Subject Author
10/19/13
Read data extraction from matrix to use in another matrix
walter Mulvany
10/19/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/19/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/19/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/19/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/20/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/20/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/20/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/20/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/21/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/21/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/21/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/21/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/21/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/21/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/22/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/22/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/22/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/22/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/22/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/22/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/22/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/22/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/22/13
Read Re: data extraction from matrix to use in another matrix
walter Mulvany
10/22/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/22/13
Read Re: data extraction from matrix to use in another matrix
dpb
10/20/13
Read Re: data extraction from matrix to use in another matrix
dpb

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.