- 1st row, 2nd column, value 34?
- 12th row, 3rd column, value 4?
- 1st row, 23rd column, value 4?
How to write matrix elements with its position?
9 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have a matrix A=[1 2 3; 4 5 6; 7 8 9] I want to write each entry with its row and column position e.g 111 indicates the element 1 at position first row First column , also 328 element 8 at position 3rd row and second column. so with the help of above matrix
A I want the following
111
122
133
214
225
236
317
328
339
Thanking for the anticipation.
1 Kommentar
Guillaume
am 25 Jan. 2018
While it's very easy to do what you want, what is its purpose? Bearing in mind that if you don't limit A to integers [0-9] and its size to a max of 9 rows and 9 columns, then the operation is irreversible.
What would the value 1234 mean?
Akzeptierte Antwort
Birdman
am 25 Jan. 2018
Bearbeitet: Birdman
am 25 Jan. 2018
[r,c]=find(A);
val=sortrows([r c A(:)],1)
2 Kommentare
Guillaume
am 25 Jan. 2018
That will fail if any value in A is 0.
[r, c] = find(true(size(A));
val = sortrows([r c A(:)],1)
would be safer.
Or:
[c, r] = ndgrid(1:size(A, 2), 1:size(A, 1));
val = [r(:), c(:), a(:)];
Weitere Antworten (2)
Siehe auch
Kategorien
Mehr zu Matrices and Arrays finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!