How to get an Index for the Particular Element in array in simulink

Greetings All, I am fairly new with Simulink, I am looking for the following, I have a 1D array [1, 9, 3, 2, 5, 8, 9] and i want to find the index of the value i am looking for for eg if i am looking for 9 i shall get 1 as answer and if i am looking for 8 i shall get 5 as answer, is there some block which can perform such operation, if not what will be the most efficient way to achieve this.

Regards Harjeet

[Nicholas Sipes]

FYI the indicies start at 1, not 0.

Answer 1

[Walter Roberson]

compare http://www.mathworks.com/help/simulink/slref/comparetoconstant.html and send the result to find http://www.mathworks.com/help/simulink/slref/find.html

[Harjeet Singh]

Not Working The Find Block is giving Error, already Tried it, can you present any Working example. I make it like this but i know this can be poor programming.