turbofib wrote

> hi,

>

> f(f == 0) = NaN

> f =

>

> 0 1 0 0 1 1

>

> i want to convert 0 in nan and 1 in *

>

> ans=[ nan * nan nan * * ]

>

> it's possible to do this?

Not literally as you start with a strictly numeric array (as you have square

brackets around it) and want to convert it to an array containing strings

("*"). That is only possible with cell arrays.

As an example the next sequence of commands:

f(f == 0) = NaN

f = num2cell (f)

f = f(cellfun (@isfinite, f)) = "*"

will do but undoubtedly there will be faster and more efficient ways.

You *can* do

f(f == 0) = NaN

f(f == 1) = "*"

but you'll end up with

f =

NaN 42 NaN NaN 42 42

where 42 equals uint8 ("*")

Philip

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