Matlab Mat File Version

If filename has no extension that is no period followed by text and the value of format is not specified then matlab appends mat if filename does not include a full path matlab saves to the current folder.

Matlab mat file version.

As a side note i find it highly ironic that the proprietary v6 v7 mat format is more cross platform compatible due to its documentation compared to the v7 3 format that is supposed to rely on the standard hdf5 format and yet is sufficiently different in a non documented manner to make this format unusable on any platform outside matlab. Although the bulk of the file is in binary form the header of a level 5 mat file can be read with a text editor. New internal format for p code. Name of file specified as a character vector or string scalar.

By default all save operations create version 7 mat files. The only exception to this is when you create new mat files using the matfile function. In this case the default mat file version is 7 3. By default all save operations create version 7 mat files.

Matlab releases r2006b and later all support all mat file versions. Matlab releases r2006b and later all support all mat file versions. By using tags the level 5 mat file format provides quick access to individual data elements within a mat file. Learn more about matlab io matfile matfile type file format matlab.

To identify or change the default mat file version access the mat files. Headers from a file saved as v6 v7 and v7 3 in matlab 2015a are shown below preceded by the version in. In this case the default mat file version is 7 3. Hdf5 based mat file support matlab 7 4 r2007a 17 1 5 0 07 2007 march 1 2007 new bsxfun function to apply element by element binary operation with singleton expansion enabled.

The save variables to version 7 3 mat file example on that page shows the exact syntax. To identify or change the default mat file version access the mat files. License server support for windows vista. Note that the headers for v6 and v7 files have the same 5 0 identification.

Figure 1 1 matlab level 5 mat file format on page 1 3 graphically illustrates this mat file format. This is also true of a version 7 3 file. The only exception to this is when you create new mat files using the matfile function. Matlab 7 5 r2007b 18 1 6 0 september 1 2007 last release for windows 2000 and powerpc mac.