Re: convert number in "*"

[PhilipNienhuis]

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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