Choosing Elements from a Vector.

Hello,

Lets say I have a Vector A = [0 1 2 3 4 5 6 7 8 9] , i want to choose the number 5 for example and 2 elements after that.

So my vektor B would look like this B = [5 6 7].

How can i do this?

Thank you in advance.

Answer 1

[Dyuman Joshi]

Use find -

A = [0 1 2 3 4 5 6 7 8 9]

A = 1×10

0 1 2 3 4 5 6 7 8 9

%This finds all the elements in A that are equal to 5
idx = find(A==5)

idx = 6

%In case 5 appears more than once in A
%you want to find the first index, use 
idx = find(A==5,1)

%Choosing the elements
B = A(idx:idx+2)

B = 1×3

5 6 7

[malik abdelli]

Thank you that helped a lot