assign values for the list of numbers in the column from a look up lable

I have a table

x = [10; 20; 30; 40; 50;]; %look up table

and i have y =

1

4

5

and I want to assign 1=10; 4=40; 5=50;

and so if i have new values of y =

2

5

then I assign 2=20; 5=50;

Answer 1

[Walter Roberson]

x(y)

[JL]

Thanks Walter! Last tiny question, would it be possible to have the answer to look as:

ans=

1 10

4 40

5 50

[Walter Roberson]

[y, x(y)]

Provided that x and y are both column vectors like you show in your question.

[JL]

Hi Walter, I have another intetesting problem, was wondering if you are interested to take a look - here is the link to the question https://uk.mathworks.com/matlabcentral/answers/475460-sharing-values-of-elements-in-a-matrix

Answer 2

[JL]

Thanks Walter, it is working!