How To Load Variables From Mat File

Dictionary in which to insert matfile variables.

How to load variables from mat file.

Note that the variable data is not a matrix but a structure. Load ascii filename will load the data in file filenameas an ascii file space delimited numeric text loaded into a single variable in the current workspace with the name filename without the extension. Use a mat file object to access and change variables in a mat file without loading the file into memory. However it was too slow to load the single variable.

If variables in the mat file are needed in other functions pass those variables to the function. Data load db mat mat data. True to append the mat extension to the end of the given filename if not already present. This example shows how to load modify and save part of a variable in an existing mat file using the matfile function.

Save example mat a b v7 3. Load variables from mat file use the loadvariablesfrommatfile method of the simulink simulationinput object. Create a version 7 3 mat file with two variables a and b. If you try to load a variable that isn t in the mat file you ll get a warning.

I was trying to load a single variable data from a large mat file 2gb using the following command in matlab r2016b on mac os. Load sobolparameter3layer mat numlayer numpar n par para parac allcol numcol totalcol. Load only the variables or fields whose names match the regular expressions specified as character vectors or strings. For matlab formatted data files you can use.

For example load filename mat regexp mon tues or load filename mat regexp mon tues loads only the variables in the file whose names begin with mon or tues. Also name the variables you re loading. Partial loading and saving of variables using a mat file object requires less memory than the load and save commands. Can also pass open file like object.