Matlab Save Function For Mat Files

To export a table in the workspace to a microsoft excel spreadsheet file use the writetable function.

Matlab save function for mat files.

Save and load workspace variables. You also can use command syntax to save the variables p and q. When working with these large. Save pqfile mat p q.

As an alternative to the save function select save workspace as from the file menu in the matlab desktop or use the workspace browser. For more information see rehash or toolbox path caching in matlab. When saving a handle object matlab saves a copy of the object not a copy of the handle. The mat file object does not support evaluating function handles using the m output.

In that case the best practice is to use the same name for the function and the file in this example fact m since matlab associates the program with the file name. Save the file either in the current folder or in a folder on the matlab search path. You can export data from the workspace to any worksheet in the file and to any location within that worksheet. Source can be an absolute or relative path when copying local files or folders.

Save two variables to a mat file. Save pqfile mat p q matlab saves the variables to the file pqfile mat in the current folder. You can save and load parts of variables directly in mat files without loading them into memory using the matfile function. Syntax save save filename save filename var1 var2 save filename struct s save filename struct s f1 f2 save regexp expr1 expr2 save format save filename var1 var2.

To copy multiple files or folders use wildcards. By default the save function compresses variables a and b before saving them to myfile mat. Create and save two variables p and q to a file called pqfile mat. Create two variables a and b and save them to a mat file version 7 or 7 3.

Then append a third variable without compression to the same file. The backup version is useful if you have system problems and lose changes you made to your file. Often you store a function in its own file. For example if your mat file contains function handle myfunc the syntax m myfunc attempts to index into the function handle and does not invoke the function.

P rand 1 10. However you can save any or all the variables in the current workspace to a mat file mat you can then reuse the workspace variables later during the current matlab session or during another session by loading the saved mat file. The primary advantage of using the matfile function over the load or save functions is that you can process parts of very large data sets that are otherwise too large to fit in memory. Write tabular data to spreadsheet file.

By default writetable writes your table data to the first worksheet in the file starting at cell a1. The workspace is not maintained across sessions of matlab when you quit matlab the workspace clears. Save and load parts of variables in mat files. File or folder to copy specified as a character vector or string scalar.