I have just started to use MAPLE. I am a matlab user.
In matlab I can use any matlab function(.m file) written in same directory.
Could someone help me out how I can do same with MAPLE. I have few worksheets performing some tasks(all in same directory)
I need to use those functions and write my own code.
Thanks in advance
Have you looked at packages? They use the same module structure as objects, but for a different purpose - they are meant to make code reusable.
A package can be maintained as source file and then be read from the current directory by its filename: read("MyModule.mpl"). This seems similar to what you are used from matlab, except that you would have to load the module explicitly. Alternatively it can be saved as binary *.mla file (Maple library archive) somewhere on the library path, then loaded by its exported package name from anywhere: with(MyModul).
Related
I want to know can i use this code for my projects?
ftp://ftp.nodc.noaa.gov/nodc/archive/arc0032/0071189/1.1/data/0-data/AT003L11/RR_MOVED/FUNFUN/ODE23.C
it uses a include mex.h file in the beginning. what is that? what is that mex header doing there? can i just ignore that line and use the rest of the code in somewhere else?
I want to use the file in android NDK.
This file is meant to be compiled for Matlab to process. If you have Matlab installed you can compile it from the console. If not you will not be able to compile this by simply removing the include statement. Your best bet is to read through the code, understand what it is doing, and use it as an example for your own code.
I'm using MATLAB R2015a application compiler. After choosing my main m-file, MATLAB found some files required for application to run but after compiling and running my application, the compiled application can't find some specific m-files from an installed toolbox (third-party toolbox).
Now i want copy all toolbox files to target folder C:\Users\My_Account\AppData\Local\Temp\My_Account\mcrCache8.5\Program_70\DDM. DDM is my toolbox folder that MATLAB creating it automatically based on nested files as mentioned above. I want add other files to this folder. How can I do this? and is this a good solution to fix this problem?
What you're trying to do won't work.
When you compile an application with MATLAB Compiler, it finds all code that your main function depends on, encrypts it, and packages it into an executable that will later be executed against the MATLAB Compiler Runtime (MCR).
The MCR can only execute code that has been encrypted and packaged in this way - it is not possible to get it to execute a regular unencrypted MATLAB file. So dumping things into the temp folder that the MCR uses to unpackage code files will not achieve anything.
Instead try to figure out why, during the dependency analysis, MATLAB Compiler is not finding all the files that your main function depends on.
There are various reasons why that might happen - the dependency analysis is not perfect. For example, if your code calls eval('myfunction'), the dependency analysis will not find myfunction. I answered another question recently where another cause was the issue.
In these situations you can explicitly tell MATLAB Compiler that there is a dependency on myfunction, using the %#function pragma. Within the file that contains the hidden call to myfunction, at the top of the file (actually anywhere, but typically you'd put it at the top), put
%#function myfunction
MATLAB Compiler will then force that to be a dependency and include it in the packaging.
Alternatively, when setting up the packaging with mcc or in the deploytool app, you can just manually add myfunction to the package yourself (although this will then not find things that myfunction depends on).
I m working on a Matlab project and I need UsbWebcams package for capture image from webcam. I can run .m file in matlab but when I compile project to create an exe file, My exe file return an error because usbWebcams package have some special .p files(Utility.p,webcamchannel.p etc) and I can not use these file for compiling.I searced on Internet and I didnt find any answer for this. How can I use .p files in my project. I think there should be a solution and I should find it. Thanks for helping to all.
Although MATLAB Compiler should be able to compile .p files, it's possible that the .p files you're trying to compile may have dependencies that you can't see because they're p-coded. For example, they might call an external library (this is quite possible if they are for interfacing with a webcam), or they might call another function using eval.
Whether they're .m files or .p files, if the files you're trying to compile have a dependency of this sort you need to include it explicitly for the Compiler, otherwise it won't know where to find it. But if the file is p-coded, it's tough to find out what the dependencies might be. You might need to ask MathWorks directly for support in compiling this functionality.
I've downloaded a data set that I am interested in. However, it is in .mat format and I do not have access to Matlab.
I've done some googling and it says I can open it in SciLab.
I tried a few things, but I haven't found any good tutorials on this.
I did
fd = matfile_open("file.mat")
matfile_listvar(fd)
and that prints out the filename without the extension. I tried
var1 = matfile_varreadnext(fd)
and that just gives me "var1 = "
I don't really know how the data is organized. The repository described the data it contains, but not how it is organized.
So, my question is, what am I doing wrong in extracting/viewing this data? I'm not committed to SciLab, if there is a better tool for this I am open to that.
One options is to use Octave, which can read .mat files and run most Matlab .m files. Octave is open source with binaries available for Linux, Mac, and Windows. Inside of Octave you can load the file using:
load file
See Octave's manual section 14.1.3 Simple File I/O for more details.
In Scilab:
loadmatfile('file.mat');
(Source)
I had this same interest a few years back. I used this question as a guide. It uses Python and SciPy. There are options for NumPy and hd5f as well. Another option is to write your own reader for the .mat format in whatever language you need. Here is the link to the mat file format definition.
I have some data generated in MATLAB that I want to process using Perl. I saved the data from MATLAB in a .mat file. Is there any way to read it in Perl?
One option would be to save the binary MAT file as ASCII from inside MATLAB using something like:
load('test_data.mat');
save('test_data.asc', 'var1', 'var2', '-ascii');
Then you would have ASCII data to process in Perl.
If you need a solution completely written in Perl, then you should be able to automate the process using the Math::MATLAB package on CPAN.
NOTE: If Python is an option, you could use the loadmat function in the SciPy Python library.
The Java library JMatIO has worked well for me. Maybe you can try using inline Java.