Specific conditions for array elements

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Alexander Nee on 22 Aug 2021

Commented: Alexander Neeon 22 Aug 2021

Accepted Answer: Awais Saeed

Hello! Let's say that i have an array 5x5 filled with numbers from 1 to 20

A=randi(20,5);

How can i compute a new array B of the same size as the A with three conditions:

1. If the element of the array A is smaller than 10, B =9^2

2. If the element of the array A is equal to 10, B =0

3. If the element of the array A is higher than 10, B =20^0.5

Thank you,

Alex

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Accepted Answer

Awais Saeed on 22 Aug 2021

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//www.tatmou.com/matlabcentral/answers/1438459-specific-conditions-for-array-elements#answer_772224

Edited:Awais Saeed on 22 Aug 2021

Fairly simple

                             clc;clear;close
                            
                             A=randi(20,5);
                            
                             B = A;
                            
                             % get indices
                            
                             B1 = find(B == 10);
                            
                             b2 = find（b> 10）;
                            
                             b3 = find（b <10）;
                            
                             % change values at those indices
                            
                             B(B1) = 0;
                            
                             B(B2) = 20^0.5;
                            
                             B(B3) = 9^2;

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Alexander Nee on 22 Aug 2021

Thank you! You greatly helped me!

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