Undefined function when trying to open sensitivity analysis tool

When I try to open the sensitivity analysis tool by typing:

ssatool('modelname')

as it is mentioned in the documents for the sensitivity analysis, this error appears and I do not know what is the problem?

Undefined function 'ssatool' for input arguments of type 'char'.

[dpb]

'modelname' is a character string; the documentation means to use the variable name you've defined for your model, not a literal string.

[Esraa Abdelkhaleq]

I wrote my model name as,

ssatool('Gambhir.m')

And I also tried without the extension .m

ssatool('Gambhir')

[dpb]

Oh, well, I didn't look at doc, I don't find any function ssatool; there is something called sdotool; mayhaps that's the problem???

http://www.mathworks.com/help/sldo/ref/responseoptimizationtool-app.html

[Esraa Abdelkhaleq]

This link contains what I asked about,

http://www.mathworks.com/help/sldo/ref/sensitivityanalysistool-app.html?s_tid=answers_rc2-1_p4_MLT

And what I want is to do a parameter sensitivity analysis to my equation model but I do not know how to do this. I would be pleasure If you can help me in solving my problem in the following link:

http://www.mathworks.com/matlabcentral/answers/319019-i-want-to-do-a-parameter-sensitivity-analysis-to-my-model

Thanks a lot.

[dpb]

I note the above link shows "Introduced in R2016a" -- which release are you running? Or, another way to look, what does

which ssatool

return?