Trying to copy a column from a array into a tall array

2 vues (au cours des 30 derniers jours)
Gavin Pugh
Gavin Pugh le 22 Déc 2022
Commenté : Gavin Pugh le 4 Jan 2023
Trying to copy a column from a double array into a multi-dimensional tall array:
IrregularRawDataTallArray(:,1, targetColumn) = InputArray(1:InputArraySize(1), sourceColumn)
I've tried some differnet syntax but I get a error:
"In the assignment A(m,n,...) = B, B must be either a scalar value or a tall array. "
This is confusing as isn;t a scalar just a single value - and also I don't want the InputArray to be a Tall Array - does this mean I can't do a vector operation on a tall array?

Réponses (1)

Bora Eryilmaz
Bora Eryilmaz le 22 Déc 2022
Modifié(e) : Bora Eryilmaz le 22 Déc 2022
Use tall() around the new data column:
T = tall(rand(10,2));
Starting parallel pool (parpool) using the 'Processes' profile ... Connected to the parallel pool (number of workers: 2).
t = rand(10,1);
T(:,2) = tall(t);
  1 commentaire
Gavin Pugh
Gavin Pugh le 4 Jan 2023
I tried that but now a error says "Incompatable tall array arguments. The tall arrays must be based on the same datastore." Is it because the tall array comes froma datastore that special rules apply for writing to it?

Connectez-vous pour commenter.

Catégories

En savoir plus sur Large Files and Big Data dans Help Center et File Exchange

Produits


Version

R2022a

Community Treasure Hunt

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

Start Hunting!

Translated by