replace with nans after condition

How to do this process

A=[10,0.5
      1,8
      8,0];
A_max =max(A);
out=[10,8];

i want to replace values <15%A_max with nans

output matrix 
Out=[10,nan %0.5 is less than the 15%8
        nan,8   % 1 is <15%10
        8,nan];

Answer 1

[madhan ravi]

Out = A;
Out(A < (max(A)/100)*15)=nan

[Leela Sai Krishna]

Thanks a lot @Madhan ravi sir

your responses are too helpful for me

[Leela Sai Krishna]

It showing

Error using <

Matrix dimensions must agree.

How to rectify this error

[madhan ravi]

Looks like you have opened up a new question:https://in.mathworks.com/matlabcentral/answers/451040-error-using-matrix-dimensions-must-agree#answer_366174

Answer 2

[Fangjun Jiang]

A(A<0.15*A_max)=nan

[Leela Sai Krishna]

its working, Thanks a lot

[Asliddin Komilov]

I have set of 25 variables (matrices), can I have repliced all zero value to NAN in all of the at once, without doing it for each of them separately?

thanks