Unrecognized function or variable 'getIpOptions'.

I try to use fmincon with options being

options = optimset('Algorithm', 'interior-point', 'Display', 'off', 'MaxIter', 10000); 

and this is the error I get:

Unrecognized function or variable 'getIpOptions'.
Error in fmincon (line 822)
    options = getIpOptions(options,sizes.nVar,mEq,flags.constr,defaultopt,10,0.01);
Error in model_fitting (line 40)
    [parameters_opt,ll_opt]=fmincon(@(x) RW_model(x,learning_data,false), init,  [],  [],  [],
    [],  lowerBound,  higherBound,  [], options);

I saw that others have the same issue, but I din't find any solution.

Answer 1

[Adam Danz]

The file getIpOptions.m should be stored in the directory identified below. Run this line of code which should open the directory where this function is stored and look for that function (for Windows)

winopen(fullfile(matlabroot,'toolbox\optim\optim'))

If the file exists, the path has somehow been removed. Restart Matlab and see if the problem goes away. If it doesn't go away, check your startup.m file (if that file exists) to determine if you're removing important paths. You could also try running restoredefaultpath.

If the file doesn't exist, is it possible that it was deleted?

[Antonios Nasioulas]

Hello, I have a macbook, I used this instead (I am not sure if it is the correct substitute)

system(fullfile(matlabroot,'toolbox\optim\optim'))        

and I get

/bin/bash: /Applications/MATLAB_R2019b.app/toolboxoptimoptim: No such file or directory

Let me also mention that I had this issue, I deleted matlab from my macbook, I installed it again and still I have the same issue.

[Adam Danz]

What happens when you execute this line?

which getIpOptions -all
 % This is what it shows for me
 % C:\Program Files\MATLAB\R2019b\toolbox\optim\optim\getIpOptions.m

Also, what version of matlab are you working with?

[Antonios Nasioulas]

I get

'getIpOptions' not found.

I use matlab_R2019b_maci64.

Thanks for the help

[Walter Roberson]

Reinstall the Optimization Toolbox

[Antonios Nasioulas]

This worked! Thanks!

[Latha Maheswari S]

Unrecognized function or variable 'functionWaterfilling'.this is the error for my code

[Adam Danz]

Could you share the full copy-pasted error message (all of it) and the line of code that is producing the error?

[Walter Roberson]

That is an odd name for a function. It would seem more plausible to me that a space got missed in the code and that the line should be

function Waterfilling

[Walter Roberson]

If you are looking at QoS-aware resource allocation in wireless communication systems by Chi En, Huang then the code for function Waterfilling is included in the paper.

[Adam Danz]

Nice digging, Walter!

Here's the URL to that dissertation

https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/items/1.0073213

[Walter Roberson]

That matches where I found the code... I was hoping there was a better location as the presentation of the Full Text through that link is hard to read.

[Adam Danz]

Fortunately there are marginal comments for nearly every line of the code so it shouldn't be too difficult to put it into Matlab.

BTW, @Latha Maheswari S, the code starts on page 169 of the dissertation and you can search the file for the WaterFilling keyword for additional references.

[Jarry]

Reinstalling the Optimization Toolbox from Matlab Installer works for me (Ubuntu). Thanks @Walter Roberson

[Dev Vaibhav]

Thanks @Jarry . In my case, Optimization Toolbox was not installed and surprisingly, matlab did not show any error which directly says that the toolbox is not installed. Had to figure out a little bit to install the toolbox as well. But finally it worked !

Answer 2

[uma]

[at this point the user had a copy of the Mathworks pdist2 code]

After excuting this code i get this error:

pdist2(X, Y, metric)

Unrecognized function or variable 'X'.

[Walter Roberson]

X = rand(23,11);
Y = rand(3,11) ;
metric = 'cosine' ;
result = pdist2(X, Y, metric) ;