how to find specific .mat file

If I know the name of the mat file,can I find it in toolbox?But I do not know which category it is and is seems only functions can be found there.

Answer 1

[Stephen23]

https://www.mathworks.com/help/matlab/ref/exist.html

Answer 2

[Walter Roberson]

>> which handel.mat
/Applications/MATLAB_R2018a.app/toolbox/matlab/audiovideo/handel.mat

[Zhonghao Li]

should I change it to my own address?And whatever if I change it,it says missing variable or function

[Walter Roberson]

You would name the .mat file you wanted to find instead of handel.mat . For example,

which flu.mat

In order for which to be able to find the .mat file, it must be somewhere on the MATLAB path.

If the file is in a private directory or inside a package, then the directory is probably not directly on the MATLAB path. In such a case you case use the -all flag of which:

>> which new_btn.mat
'new_btn.mat' not found.
>> which -all new_btn.mat
/Applications/MATLAB_R2018a.app/toolbox/stateflow/stateflow/private/new_btn.mat

However, not all files provided with MATLAB are on the MATLAB path. For example some of the files related to examples are not on the path by default, and when you use open_example then they are copied from their location to a local directory for you to experiment with. You might need to use a system tool to find the file

>> which -all flames.mat
'flames.mat' not found.
>> !find /Applications/MATLAB_R2018a.app -name flames.mat -print
/Applications/MATLAB_R2018a.app/extern/examples/compiler/flames.mat

In MS Windows, the command would involve "dir" with the "/s" flag, such as

!cd C:\; dir /s flames.mat

[Zhonghao Li]

oh,I get it,thanks a lot