How to perform operation on sepcific elements in an array?

9 次查看（过去 30 天）
Rabia Zulfiqar
Rabia Zulfiqar 2020-6-6
编辑： KSSV 2020-6-6
I have an array 'A' of size 1×365. There is an another array 'B' consisting of linear indexing of size 1×160. Now I want to create another array 'C' of size 1×365 where I have to perform operation on the elements according to the index of B. For example A=[2 4 6 8 10] B=[1 4] I want to perform A-2.5 on the elements of A to create a new matrix C and convert the remaining elements to zero in A. The answer will be C=[-0.5 0 0 5.5 0] As B(1)=1 and B(2)=4 so the mathematical operation is performed only on those elements and the remaining elements are converted to zero. How Can I do this? Thankyou in advance.

请先登录，再回答此问题。

回答（1 个）

KSSV
KSSV 2020-6-6
编辑：KSSV 2020-6-6
C = zeros(size(A)) ;
C(B) = A(B)-2.5

类别

在 Help Center 和 File Exchange 中查找有关 Mathematics 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by