I have a .mat file that I want to open and see its contents. Since I don't have MATLAB, I downloaded GNU's Octave. I'm working on Mac's terminal so I'm not exactly sure how to open the .mat file to see its contents.
How to do this?
Not sure which version of .mat file you might have, or whether Octave keeps up with the latest Matlab formats.
Here's a link that might be a good start.
Bottom line is that you can say: load MyMatFile.mat right at the Octave prompt.
In case you wind up having to write code to read the .mat file ever: I've done this before and it was not difficult, but was time-consuming. Mat file format for 2012a
If your file contains only numbers, no .mat header, then this should work:
variable = load("filename")
Related
I would like to save my predicted features into .mat format and .txt format in keras for further process in Matlab. Please help me. Thanks.
For .mat, check out SciPy's File IO.
For .txt, there are many options, such as NumPy's savetxt.
Check out the CSV format as well, which is a common way to save data for cross-platform use.
I know ILNumerics handles mat file saved using -v6 or -v7.3 option quite nicely but anyone knows how to make it recognize files saved using -v7 option?
The -v7 option by default uses compression and hence ILNumerics will give me a message saying it does not support compressed file and suggests me using -v6 option to save the file.
I guess nowdays mat file saved using latest releases of matlab (like 2010 - 2014) prefer the -v7 file format against the -v7.3 format which internally uses HDF5 because of the overhead HDF5 causeds. And since compression it's also smaller in size than the -v6 file which also is a big advantage.
So can ILNumerics fill this gap? Or is there already a solution that I missed?
Thanks.
I have a file that is in AVL file format from a program called ArcGIS (formerly ArcView) that I need to convert to a mat file. It contains data I need to play back. Can anybody suggest a simple way to convert the file? I have done quite a bit of searching, and it seems the AVL is not a binary, aka it is a text format, which means I could write a program to convert it, but only if I also knew the corresponding matlab MAT file format. Moreover, this could take quite a while to do, and I need to file to be converted quickly so I can use the data.
I have downloaded a EEG recording of a person in Matlab-Audio Format. I have no idea of how to use it in Matlab for further processing. Is it possible to generate signals in Matlab? If so, is there any code to generate EEG signal?
Any help would be highly appreciated. Thanks in advance!
Some versions of Winamp and Microsoft Access set the description for the .mat file extension to "MATLAB Audio Format", although I have no idea what this means. It's unclear to me if such a unique file type really exists; I'd love to know more if there is actually some special format of which I am not aware. More likely, the file you downloaded is simply a standard MATLAB .mat file containing the EEG data in one or more variables. You can read the variables in MATLAB with the load command. To see the variable names contained in the MAT file prior to loading it, use whos with the -file switch.
I'm used to working in Matlab using its full GUI environment. Due to license issues I went and installed Octave, but it appears that it doesn't have a GUI, at least not one that's installed by default.
I transferred the variables from Matlab to Octave by saveing them in Matlab and loading them in Octave. Thing is, I don't remember the names because I got used to seeing them in the little workspace window which I no longer have.
How can I see the list of defined variables and their types in Octave?
The command whos will do just that.
With the command whos you can even see the variables that the file has WITHOUT opening the file, to be assure that this file is the one.
For example, the name of the file is MyVariables.mat
use:
whos('-file','MyVariables.mat')
You can use a GUI similar to Matlab, such as QtOctave or GUIOctave.