MATLAB Central Newsreader - Is MCR required for standalone applications?

Is MCR required for standalone applications?

Ahmed ElDessouki — Wed, 09 Apr 2008 20:37:02 -0400

Hello,

I have a program written in C, and I wish to add an
algorithm to improve its speed. I have that figured out, and
I need to use a cumulative inverse chi squared distribution.
My variable would be the degrees of freedom; so I would need
to use the MatLab function chi2inv(x,y)

I need to be able to pass the variable y from within my C
code, and compile it as a standalone application. I have
figured out that I need to use MatLab compiler (mcc).

Now, my question is: Do I need to have MCR installed on the
computer I want to use my application on? Is there any way
around this? From my understanding is that the mcc command
allows me to access my M files from my C code, but it then
uses MCR to do do the computations. Is this correct? And is
there any way to do it so that everything is done from
within one executable?

Thank you for your time.

Re: Is MCR required for standalone applications?

Peter Boettcher — Wed, 09 Apr 2008 21:31:38 -0400

"Ahmed ElDessouki" <ahmed.eldessouki@gmail.com> writes:

> Hello,
>
> I have a program written in C, and I wish to add an
> algorithm to improve its speed. I have that figured out, and
> I need to use a cumulative inverse chi squared distribution.
> My variable would be the degrees of freedom; so I would need
> to use the MatLab function chi2inv(x,y)
>
> I need to be able to pass the variable y from within my C
> code, and compile it as a standalone application. I have
> figured out that I need to use MatLab compiler (mcc).
>
> Now, my question is: Do I need to have MCR installed on the
> computer I want to use my application on? Is there any way
> around this? From my understanding is that the mcc command
> allows me to access my M files from my C code, but it then
> uses MCR to do do the computations. Is this correct? And is
> there any way to do it so that everything is done from
> within one executable?

I would suggest that MATLAB is a rather large dependency to be
introducing into your C-based project, only for one function: chi2inv.

Two options:

1- Implement chi2inv in C. As you develop for now, you can use the
MATLAB engine to use chi2inv, and have your C port ready for using on
other machines.

2- Use a different library better suited for C-based math. I recommend
the GNU Scientific Library:

http://www.gnu.org/software/gsl/
or here for Windows:
http://gnuwin32.sourceforge.net/packages/gsl.htm

The documentation for the inverse chi-squared CDF is here:
http://www.gnu.org/software/gsl/manual/html_node/The-Chi_002dsquared-Distribution.html

-Peter

Re: Is MCR required for standalone applications?

Ahmed ElDessouki — Thu, 10 Apr 2008 14:39:02 -0400

Thanks Peter.
I was originally looking for a C library but failed to find
one. I will look into this one in more detail now. Your help
is much appreciated.

However, for the purpose of other projects which are more
dependent on MatLab, what's the take on the need of MCR?

Thanks, again.

Re: Is MCR required for standalone applications?

Bruno Luong — Thu, 10 Apr 2008 16:38:02 -0400

"Ahmed ElDessouki" <ahmed.eldessouki@gmail.com> wrote in
message <ftl8q6$r1i$1@fred.mathworks.com>...
>
> However, for the purpose of other projects which are more
> dependent on MatLab, what's the take on the need of MCR?
>

You can't escape the need of MCR.

Bruno