Pattern search and string indexing

2 visualizzazioni (ultimi 30 giorni)
Ronald
Ronald il 4 Giu 2020
Commentato: Ameer Hamza il 5 Giu 2020
I have two cell arrays:
A = {[x(2)& x(4)& x(1)],[x(3),x(5)],[x(2),x(1)]}
B = {2465,2514,147,236,58}
where the integers in A are the indices of B items. I want to replace those indices with actual values as:
C = {[2514,236,2465],[147,58],[2514,2465]}
For loop is a bit slow. Is there an alternative?

Risposta accettata

Ameer Hamza
Ameer Hamza il 4 Giu 2020
Something like this
A = {[2 4 1],[3 5],[2 1]}; % you can put indexes as numbers
B = {2465,2514,147,236,58};
A_new = cellfun(@(x) {[B{x}]}, A)
  3 Commenti
Ronald
Ronald il 4 Giu 2020
By the way, can we set a separator in the output here?
Ameer Hamza
Ameer Hamza il 4 Giu 2020
Can you explain what do you mean by separator?

Accedi per commentare.

Più risposte (1)

madhan ravi
madhan ravi il 4 Giu 2020
A = @(x){[x(2), x(4), x(1)],[x(3),x(5)],[x(2),x(1)]}
B = {2465,2514,147,236,58}
C = A(B)
  2 Commenti
Ronald
Ronald il 4 Giu 2020
Thanks mate! However, I found out that it couldn't slice A nicely as I wanted.
Ameer Hamza
Ameer Hamza il 5 Giu 2020
FYI, following code will slice A as you want
C = A([B{:}])

Accedi per commentare.

Categorie

Scopri di più su Desktop in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by