Error "Undefined function 'genfis1' for input arguments of type 'double'.

I try to run a code but i get this error "Undefined function 'genfis1' for input arguments of type 'double'. Error in oilForcasting (line 87) fismat=genfis1(train_data, mf_no, mf_type) %create of initial fis " What is wrong???? Is there anyone that i can send the code and the data to make is run?

Thank you all in advance.

[Geoff Hayes]

Manolis - do you have the Fuzzy Logic Toolbox? In the command window, type

 which genfis1

to see if MATLAB can find the function. If it can, then which version of MATLAB are you using?

Answer 1

[Walter Roberson]

You need the Fuzzy Logic Toolbox https://www.mathworks.com/help/fuzzy/genfis1.html

Note: genfis1 will probably be removed in R2018b.

Answer 2

[MANOLIS CHERETAKIS]

Thank you both for the instant reply. I typed that but the following came out:

>> which genfis1 'genfis1' not found.

>> which genfis 'genfis' not found.

I am using the "MATLAB R2014a" version.

[Walter Roberson]

genfis1 was part of the Fuzzy Logic toolbox from some time before R2006a, so if you have the Fuzzy Logic Toolbox installed you should have the function. Perhaps you do not have that toolbox installed. Command

ver('fuzzy')

If you have the toolbox installed then it should list the toolbox.