> i want to convert 0 in nan and 1 in *
>
> ans=[ nan * nan nan * * ]
>
> it's possible to do this?
It really depends on what class of output you want.
That mixes numbers and characters. So you could convert to a character array using different string manipulations, and substitute * and NaN for 1 and 0 in the char array. or as Phillip mentioned, a cell array would do it.
So the answer is, what is it you are really trying to do?