Mat file versions overview of mat file versions.
Matlab load mat file 4 version.
The simplest though least flexible procedure is to use the load command to read the entire contents of the file in a single step.
Matlab releases r2006b and later all support all mat file versions.
Until the last column of the first page then it s the same with the second page.
The from file block loads data from a mat file into a model and outputs the data as a signal.
If you do not specify filename the load function searches for a file named matlab mat.
The matlab load command.
The from file block icon shows the name of the mat file that supplies the data to the block.
Filename can include a file extension and a full or partial path.
Matlab stores all the rows of the first column of the first page continuously then all the rows of the the second column of the first page etc.
Starting with mat file version 4 there are several subsequent versions of mat files that support an increasing set of features.
The data is a sequence of samples.
Mat files are binary matlab files that store workspace variables.
There is more than one way to read data into matlab from a file.
Matlab releases r2006b and later all support all mat file versions.
To efficiently use the benefits of matfile it is important to understand how matlab stores matrices in memory and on file.
For a version 7 0 and earlier mat file the from file block loads the complete uncompressed data from the file into memory when the simulation begins.
Name of file specified as a character vector or string scalar.
Starting with mat file version 4 there are several subsequent versions of mat files that support an increasing set of features.
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.
The data can be in array format or matlab timeseries format.
The load command requires that the data in the file be organized into a rectangular array.
No column titles are permitted.
Varlist is a cell array containing the names of the four variables in topography mat.
The third and fourth variables topomap1 and topomap2 are both arrays containing topography data load the elevation data from the third column of each variable into a field of the structure array s for each field specify a field name that is the original variable name prefixed by elevationof.
For a version 7 3 mat file the from file block incrementally loads data from the file during simulation.
If filename has no extension that is no text after a period load looks for a file named filename mat if filename has an extension other than mat the load function treats.
Each sample consists of a time stamp and an associated data value.
