Thread Subject: functions in one file

Hi,
I know recent versions ( 6, 7) of Matlab let the programmer to put many
functions in only one file.
I have written many functions in matlab.
I put every function in a single file: "name_file.m". can it be used by
other files?
For example, in file "name1" I write the function A, which calls functions
B and C. B and C are
written in this file "name1".
In file "name2" I write the function D, which calls functions B and C.
Have I got to write functions B and C in file "name2" too?
Can file "name2" use functions B and C, also if they are written only in
file "name1"?

Thank you,
Adriano

Re-Hi!

"adriano meis" <doreciakgulp@tin.invalid> wrote in message
<5NoPj.294840$%k.403939@twister2.libero.it>...
> Have I got to write functions B and C in file "name2" too?
Yes, or you may put each funtion into a separate file.

> Can file "name2" use functions B and C, also if they are
> written only in file "name1"?
No.

-- copy & paste from the matlab documentation --
Primary and Subfunctions

All functions that are not anonymous must be defined within
an M-file. Each M-file has a required primary function that
appears first in the file, and any number of subfunctions
that follow the primary. Primary functions have a wider
scope than subfunctions. That is, primary functions can be
invoked from outside of their M-file (from the MATLAB
command line or from functions in other M-files) while
subfunctions cannot. Subfunctions are visible only to the
primary function and other subfunctions within their own M-
file.
--------

best wishes,
Sven

adriano meis wrote:
> Hi,
> I know recent versions ( 6, 7) of Matlab let the programmer to put many
> functions in only one file.
> I have written many functions in matlab.
> I put every function in a single file: "name_file.m". can it be used by
> other files?
> For example, in file "name1" I write the function A, which calls functions
> B and C. B and C are
> written in this file "name1".
> In file "name2" I write the function D, which calls functions B and C.
> Have I got to write functions B and C in file "name2" too?
> Can file "name2" use functions B and C, also if they are written only in
> file "name1"?

Read the section in the online documentation about "function name
resoluton" -- it goes through the whole process thoroughly.

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