What does the following error means

Hello everyone please i need your help I have this error in my code and I couldn't know what does it mean and how to correct it. You can see here my code and the following error

for ind = 1:length(x)
        Pout_ideal_af_f(ind,:) = functionOutageFormula(x(ind),alpha1,alpha2,beta1,beta2,b1,b2,c,d);
    end

the error is :

Undefined function or variable 'functionOutageFormula'.

Error in fig2fig3newlook (line 272) Pout_ideal_af_f(ind,:) = functionOutageFormula(x(ind),alpha1,alpha2,beta1,beta2,b1,b2,c,d);

Answer 1

[Jan]

The error message seems to be clear and easy:

 Undefined function or variable 'functionOutageFormula'.

There is no M-file called "functionOutageFormula.m" and no local function with this name also. A bold guess is, that you want "OutageFormula" instead.

You have read the message also. Then please explain, why you assume that "functionOutageFormula" is an existing function. Maybe you have created such a function, but forgot to include its parent folder in th Matlab path? Then see doc addpath.