How to choose between different licenses in MATLAB Online?

Im taking part in some online courses using Matlab. For this courses there is a license for Matlab online to work through the course. For the new course i have taken, i need to use the license, since there is 'Text Anlalytics Toolbox' included only in this one. How do i choose this license when starting Matlab online? At the moment it always starts with the license from the first course i have taken - so that i cannot proceed:

Can anyone tell me how to choose between the licenses?

best regards

Stephan

[dpb]

This is something Mathworks will have to address or the source of the course you're taking. Contact official TMW support; the Answers forum is not an offiical support venue; it's hosted by Mathworks, but is a volunteer community and not official for such issues as licensing, etc., ...

[Rik]

What dpb mentioned notwithstanding, if you get a reply, please post it as an answer, since I do consider this relevant information for this forum.

[Stephan]

Hi,

thanks for your comments.

@dpb you're right - just hoped that i missed something obvious and somebody can help me out. It doesn't seem to be the case that it's easy to solve...

@Rik i will do so - maybe interesting for other users too.

Answer 1

[Cris LaPierre]

Can you confirm that there is an actual error message? As Isaac said, MATLAB Online should grant you access to all toolboxes you have a license for.

Please try running this code in MATLAB Online and let us know if it works.

filename = "sonnetsPreprocessed.txt";
str = extractFileText(filename);
textData = split(str,newline);
documents = tokenizedDocument(textData);

figure
wordcloud(documents);

[Cris LaPierre]

You can also run the following command in the Command Window in MATLAB Online to see what toolboxes your current session has access to (all toolboxes you have are 'inuse' all the time online).

license inuse

Note that some of the license names are different from the actual toolbox names (see this post for a mapping)

Your results should contain at least these toolboxes based on the MOOCs you are enrolled in.

>> license inuse

audio_system_toolbox

control_toolbox

database_toolbox

image_toolbox

map_toolbox

matlab

neural_network_toolbox

optimization_toolbox

signal_blocks

signal_toolbox

statistics_toolbox

symbolic_toolbox

text_analytics_toolbox

video_and_image_blockset

[Stephan]

"...Can you confirm that there is an actual error message?..." - yes and no. When the problem occured there was the error message:

'extractFileText' requires Text Analytics Toolbox.

To find out whats going on, i used ver with the following result:

ver
-----------------------------------------------------------------------------------------------------MATLAB Version: 9.13.0.2145394 (R2022b) Update 3
MATLAB License Number: XXXXXXXXX
Operating System: Linux 5.4.224-0504224-generic #202211101403 SMP
Thu Nov 10 21:10:29 UTC 2022
x86_64Java Version: Java 1.8.0_292-b10 with AdoptOpenJDK OpenJDK 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
MATLAB    Version 9.13 (R2022b)
Control System Toolbox  Version 10.12  (R2022b)
Optimization Toolbox  Version 9.4 (R2022b)
Signal Processing Toolbox  Version 9.1   (R2022b)
Statistics and Machine Learning Toolbox   Version 12.4  (R2022b)
Symbolic Math Toolbox   Version 9.2    (R2022b)  

However, now after reading your answer i tried what you suggested - and everything works as you stated:

license inuse
audio_system_toolbox
control_toolbox
database_toolbox
image_toolbox
map_toolbox
matlab
neural_network_toolbox
optimization_toolbox
signal_blocks
signal_toolbox
statistics_toolbox
symbolic_toolbox
text_analytics_toolbox
video_and_image_blockset

Also this gives the desired result using Matlab Online:

filename = "sonnetsPreprocessed.txt";
str = extractFileText(filename);
textData = split(str,newline);
documents = tokenizedDocument(textData);

figure
wordcloud(documents);

What should i say? Both tests are ok and the problem is solved. So far so good - ...but why? What happend?

Thanks for your answers - if you could explain what happened here, i would be happy. Since i can proceed the work in the course, im glad.

Best regards

Stephan

[Cris LaPierre]

Not sure, either, but glad it's now working for you.

Answer 2

[Isaac Bruss]

Hi Stephan.

If you have multiple licenses with different toolboxes attached to your account, then you should have access to the full inclusive list of them. "Switching" licenses not not required.

Based on the screenshot you've shared, there appears to be an issue with your account. I've engaged with customer support.

[Stephan]

Thank you Isaac!