Unable to access toolbox functions? Undefined function or variable 'Skew'.!

I am using Matlab 2015b. When I write function name e.g. "skew(2)" or "rot2(3)" then MATLAB gives me error "Undefined function or variable 'Skew'." I have checked that "Symbolic Math Toolbox" is already installed. Now what should I do?

[Steven Lord]

Searching for "rot2" in the documentation found no reference to such a function in the Symbolic Math Toolbox documentation, nor was there any reference to a function by that name in any MathWorks product. I even looked at the list of MuPAD functions but couldn't find it.

Can you give us some context -- what makes you think there is a function named rot2 in MATLAB, Symbolic Math Toolbox, or any other MathWorks product?

Answer 1

[madhan ravi]

https://in.mathworks.com/help/stats/skewness.html

https://in.mathworks.com/help/robust/ref/skewdec.html - requires ROBUST CONTROL TOOLBOX

FYI , I have symbolic toolbox and it doesn't belong to symbolic math toolbox

>> help skew

skew not found.

Use the Help browser search field to search the documentation, or
type "help help" for help command options, such as help for methods.

[Haider Ali]

ROBUST CONTROL TOOLBOX is also installed, but in help

>> help skew()

skew() not found.

Use the Help browser search field to search the documentation, or

type "help help" for help command options, such as help for methods.

Is there any way to add these functions in MATLAB?

[madhan ravi]

It's skewdec() did you even read the link I posted??

[Haider Ali]

Yes, I did it.

Thanks

[madhan ravi]

Anytime :)

Answer 2

[Vu Nguyen]

You can try installing the Machine Vision Toolbox which could be found here https://petercorke.com/toolboxes/machine-vision-toolbox/