mathematica to matlab converter

Hello. I need to convert Mathematica program to matlab. I have tried tomatlab function but doesn't know how to use it.I only need to convert some expressions.

suggest a solution

Answer 1

[NNM]

Too old a thread, but this answer may be helpful for some visitor. You can use ToMatlab package built for mathematica http://library.wolfram.com/infocenter/MathSource/577/ Usage: Place the file in applications folder of your base directory.

<<ToMatlab`

SOME EXPRESSION //ToMatlab

Answer 2

[Walter Roberson]

In such situations the method that is most effective for me is understanding what the source code is doing and rewriting the functionality in the second language.

[LOKESH]

I totally agree with that but i can't do the partition function?How to do that in matlab.Flat() is available in matlab,what i need to do for Partition()?

[Walter Roberson]

"Your Honor, the council is assuming facts that are not in evidence."

In other words, do not assume that people will refer back to and remember your previous postings.

http://www.mathworks.com/matlabcentral/answers/24706-bitxor-operation

"I need to convert the following expressions into matlab:

B=Flatten[B];

L=partition[L,length];"

I do not find any Mathematica function named "partition". There is a "Partition" function though, http://reference.wolfram.com/mathematica/ref/Partition.html . The equivalent to that function would depend upon which data structure you wanted. reshape() might be appropriate, or mat2cell() might be appropriate.

[LOKESH]

Thanks Walter.

For Flattening the image matrix i did:

B=B(:);

For partition i am getting error in reshape

i want the L to a square image of size length

I did:

L1=reshape(L,length);

ERROR:

??? Error using ==> reshape

Size vector must have at least two elements.

Error in ==> rk4_CHEN at 140

L1=reshape(L,M);

OR

L1=reshape(L.length,length);

ERROR:

??? Error using ==> reshape

To RESHAPE the number of elements must not change.

Error in ==> rk4_CHEN at 140

L1=reshape(L,M,M);

Suggest solution

[Walter Roberson]

I suspect you want

L1 = reshape(L, length, []).' ;

And to be consistent with Mathematica, I suspect that your Flatten should be

B1 = reshape(B', [], 1);

In both of these cases, I am presuming that you are storing row-wise (as Mathematica would) rather than column-wise (as MATLAB would.)

[LOKESH]

I am going from scratch as i am unable to get from above solution.

Please suggest what following lines mean in mathematica:

pixelvalues=A[[1,1]];

Dimensions[pixelvalues]

lg=Length[pixelvalues]

Where A is jpeg image..

as i am confusion of that does first line mean pixel value at point A(1,1).

[Walter Roberson]

It has been pretty much a decade since I did any serious Mathematica programming; it would be easier for you to look up the functions on the Wolfram site.