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I have the fuzzy logic toolbox installed with a proper license, but still when I use 'sigmf' it gives an error. Pls help.

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Asifuz Zaman
Asifuz Zaman 2018-8-21
评论： Walter Roberson 2018-8-22
I have the fuzzy logic toolbox in the apps and on the simulink library. But when I try to use the 'sigmf' function it gives the following error:
To use 'sigmf', the following product must be licensed, installed, and enabled: Fuzzy Logic Toolbox
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Walter Roberson
Walter Roberson 2018-8-22
First try
license('test','Fuzzy_Toolbox')
If it is not able to find a license then it will return 0; if it is able to find a license, it will return 1.
Next,
getenv('LM_LICENSE_FILE')
getenv('MLM_LICENSE_FILE') %chances are it will be empty
See https://www.mathworks.com/matlabcentral/answers/93105-what-are-the-lm_license_file-and-mlm_license_file-environment-variables-and-how-do-i-set-or-check-fo#answer_102453 for more information about those variables.
If you are using a stand-alone license then there may be only a single filename in LM_LICENSE_FILE . If you are using a network license, then you might see something like 1711@hostname and the hostname would be the name or IP address of the license server. In some cases on Mac you might see a list of local file names, as MATLAB has changed the location of the license files. If you see a file name that mentions "network" then you probably have a network license.
If both of those environment variables show up empty, then you probably have a stand-alone license. The license file locations are described in https://www.mathworks.com/matlabcentral/answers/99147-where-are-the-license-files-for-matlab-located
When you find the license file that lists the actual INCREMENT lines, look for INCREMENT Fuzzy_Toolbox

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