Is it possible to determine when I last used a toolbox?

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It's coming time for me to renew my license, and I have a couple toolboxes that I rarely use, if at all. Is there a way to see when the last time a certain toolbox was used? If I haven't used it in over a year, I'm not going to renew it. I know I can use license('inuse') to determine which toolboxes are currently in use, but that doesn't help me determine if I ever use a particular toolbox.

Answers (3)

Jan on 4 May 2017
Edited: Jan on 4 May 2017
You could check the file access dates with FEX: GetFileTime under Windows:
FileDir = dir(fullfile(matlabroot, '\**\*.*'));
NameList = cell(1, numel(FileDir));
DateList = zeros(numel(FileDir), 6);
for iFile = 1:numel(FileDir)
File = fullfile(FileDir(iFile).folder, FileDir(iFile).name);
NameList{iFile} = File;
DateList(iFile, :) = GetFileDate(File, 'UTC', 'Access');
Now you can get the last access of a specific folder, e.g. determined as parent folder of a specific function:
Folder = fileparts(which('nanmean'));
Match = strncmpi(NameList, Folder, length(Folder));
Dates = sortrows(DateList(Match, :));
LastAccess = Dates(1, :);
Unfortunately I'm nor sure if this works on your machine. The logging of the access dates can be disabled. Calling the help text of a function cannot be distinguished from using the toolbox. Therefore I would not use this as solution, but it might be a hint.
Note that this works only, if you have enables the last access logging. Check this at first:
fsutil behavior query DisableLastAccess
To enable the logging:
fsutil behavior set DisableLastAccess 0
Run these commands in Windows' command window with admin privileges. Logging the last access will slow down the disc access measurably.
  1 Comment
David K
David K on 4 May 2017
This looks like it's the right approach, but I'm having some issues getting it working. First, dir with the recursive wildcards doesn't work; I can only operate in the current level. The dir output also doesn't provide a folder field. I managed a workaround by creating my own recursive search function and adding the folder field manually.
Is the function GetFileDate supposed to be GetFileTime? I only saw the one function on the FEX, but I haven't tried compiling it yet.

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Steven Lord
Steven Lord on 3 May 2017
Check with your license administrator. Depending on the type of license you're using, they may be able to use the license management tools to gather this information.
Andreas Goser
Andreas Goser on 4 May 2017
If you have a stand-alone license, your toolbox usage is not logged.
Maybe you are in a situation where you do not use the toolboxes, because your project / application scope has changed. But maybe you could leverage the value of the toolboxes, but you need some technical information from a MathWorks engineer?

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Dave Carrier
Dave Carrier on 7 Jun 2018
Kinda cumbersome but couldn't you cycle through your recent command history, find unique and successful script names then use:
names = dependencies.toolboxDependencyAnalysis({cell array containing script names})
Ugly, and slow... but might work.


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