Changing the data type of an array

Hi,

I have a very specific question. I am sure there must be a way to do
this efficiently yet I have been unable to do so.

I am using MATLAB to communicate with a remote instrument (logic
analyzer). That instrument provides the result of the measurement as
an array of unsigned bytes. But as I know that it is indeed an array
of 16 bit signed integers (int16), I have to go through a data
conversion process. To do the conversion, currently I am reading the
byte array with a "for" loop which builds a new array whose length is
have the original array length. As you can imagine, this is way too
slow when the data measured is large. I wonder if there is a
better/faster way of doing this with MATLAB (I bet there is, but I
have been unable to find it). For instance, if I was doing this in C,
I would just use an integer pointer that would point to the byte
array. Any help would be appreciated.

Thanks,

Fernando.
.

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