How to select one of the array and change the array data selected with another value ?

example :

datasample [83    84    82    81    82    86    81    85    87    *88*];

if datasample > 87
datasample = mean(datasample);
end

I want change the biggest value in datasample that is 88 with mean ( 83)

how to code like that ?

Answer 1

[David Fletcher]

datasample=[83    84    82    81    82    86    81    85    87    88];

datasample(datasample==88) = mean(datasample);

or more generally

datasample(datasample==max(datasample)) = mean(datasample)

Answer 2

[Birdman]

[~,idx]=max(datasample);
datasample(idx)=mean(datasample)

Answer 3

[Muhammad Hafiz]

Thank you for answer my question, both of you answer the correctly :)