MATLAB Programming

Nested Functions
count =
125 225 325 425
h(42)
count =
167 267 367 467
Now do the same using sCountFun and subCount, and verify that the results
are the same.
Note If you construct a new function handle to subCount or nestCount, the
former value for count is no longer retained in memory. It is replaced by
the new value.
Separate Instances of Externally Scoped Variables
The code shown below constructs two separate function handles to the same
nested function, nestCount, that was used in the last example. It assigns
the handles to fields counter1 and counter2 of structure s. These handles
reference different instances of the nestCount function. Each handle also
maintains its own separate value for the externally scoped count variable.
Call nCountFun twicetogettwoseparatefunctionhandlestonestCount.
Initialize the two instances of count to two different vectors:
s.counter1 = nCountFun([100 200 300 400]);
count =
100 200 300 400
s.counter2 = nCountFun([-100 -200 -300 -400]);
count =
-100 -200 -300 -400
Now call nestCount by means of each function handle to demonstrate that
MATLAB increments the two count variables individually.
Increment the first counter:
s.counter1(25)
5-25