I have this error: ''Execution of script plot as a function is not supported: C:\Users\Jonathan e Leonardo\D​ocuments\M​ATLAB\plot​.m''

I have this error: ''Execution of script plot as a function is not supported:

C:\Users\Jonathan e Leonardo\Documents\MATLAB\plot.m''

How can I resolve it?

[Stephen23]

"How can I resolve it?"

Do not name your script plot: rename your script to something else (not the name of a MATLAB function).

[JONATHAN LAZZARESCHI]

Thank you, now it works

[Steven Lord]

@JONATHAN LAZZARESCHI If the answer from @Alagu Sankar Esakkiappan resolved the problem please indicate that by accepting that answer. Thanks.

[Anushree]

I have named my file as dsp1 but still not working...

[Akshith]

even i am getting this error whenever i am doing matlab

[Akshith]

how to sort this error?

[Steven Lord]

Use which -all on the name that MATLAB says was a script that you expected to be a function. More likely than not you've defined your own file with the same name as a function in MATLAB or another MathWorks product and so your file is shadowing (taking precedence over) the function in the MathWorks product. Rename your file or remove it.

As an example, if I created a script file plot.m:

% Change to a new temporary directory into which I can write the file
newlocation = tempname;
mkdir(newlocation)
cd(newlocation)
% Create the file using low-level file I/O functions
fid = fopen(fullfile(pwd, 'plot.m'), 'wt');
fprintf(fid, "x = 1+1");
fclose(fid);

and ask what plot refers to:

which -all plot

Warning: Function plot has the same name as a MATLAB built-in. We suggest you rename the function to avoid a potential name conflict.

Warning: Function plot has the same name as a MATLAB built-in. We suggest you rename the function to avoid a potential name conflict.

/tmp/tp3a79b330_05bc_42e0_8712_09c278bc7e8b/plot.m
built-in (/MATLAB/toolbox/matlab/graph2d/plot)                  % Shadowed
/MATLAB/toolbox/matlab/graphics/math/@digraph/plot.m            % digraph method
/MATLAB/toolbox/matlab/graphics/math/@graph/plot.m              % graph method
/MATLAB/toolbox/matlab/timeseries/@timeseries/plot.m            % timeseries method
/MATLAB/toolbox/matlab/graphics/math/@polyshape/plot.m          % polyshape method
/MATLAB/toolbox/matlab/graphics/math/@alphaShape/plot.m         % alphaShape method
/MATLAB/toolbox/matlab/bigdata/@tall/plot.m                     % tall method
/MATLAB/toolbox/bioinfo/bioinfo/@phytree/plot.m                 % phytree method
/MATLAB/toolbox/bioinfo/microarray/@HeatMap/plot.m              % HeatMap method
/MATLAB/toolbox/bioinfo/microarray/@clustergram/plot.m          % clustergram method
/MATLAB/toolbox/curvefit/curvefit/@cfit/plot.m                  % cfit method
/MATLAB/toolbox/curvefit/curvefit/@sfit/plot.m                  % sfit method
/MATLAB/toolbox/econ/econ/@conjugateblm/plot.m                  % conjugateblm method
/MATLAB/toolbox/econ/econ/@diffuseblm/plot.m                    % diffuseblm method
/MATLAB/toolbox/econ/econ/@mixconjugateblm/plot.m               % mixconjugateblm method
/MATLAB/toolbox/econ/econ/@lassoblm/plot.m                      % lassoblm method
/MATLAB/toolbox/econ/econ/@mixsemiconjugateblm/plot.m           % mixsemiconjugateblm method
/MATLAB/toolbox/econ/econ/@empiricalblm/plot.m                  % empiricalblm method
/MATLAB/toolbox/econ/econ/@blm/plot.m                           % blm method
/MATLAB/toolbox/econ/econ/@customblm/plot.m                     % customblm method
/MATLAB/toolbox/econ/econ/@semiconjugateblm/plot.m              % semiconjugateblm method
/MATLAB/toolbox/ident/ident/@iddata/plot.m                      % iddata method
/MATLAB/toolbox/ident/nlident/@idnlarx/plot.m                   % idnlarx method
/MATLAB/toolbox/ident/nlident/@idnlhw/plot.m                    % idnlhw method
/MATLAB/toolbox/mpc/mpc/@mpc/plot.m                             % mpc method
/MATLAB/toolbox/risk/risk/@varbacktest/plot.m                   % varbacktest method
/MATLAB/toolbox/robust/rctobsolete/robust/@frd/plot.m           % frd method
/MATLAB/toolbox/robust/robust/@umargin/plot.m                   % umargin method
/MATLAB/toolbox/shared/channel/rfprop/@propagationData/plot.m   % propagationData method
/MATLAB/toolbox/shared/drivingscenario/@drivingScenario/plot.m  % drivingScenario method
/MATLAB/toolbox/signal/signal/@dspdata/plot.m                   % dspdata method
/MATLAB/toolbox/stats/bayesoptim/@BayesianOptimization/plot.m   % BayesianOptimization method
/MATLAB/toolbox/stats/classreg/@LinearModel/plot.m              % LinearModel method
/MATLAB/toolbox/wavelet/wavelet/@dtree/plot.m                   % dtree method
/MATLAB/toolbox/wavelet/wavelet/@wdectree/plot.m                % wdectree method
/MATLAB/toolbox/wavelet/wavelet/@ntree/plot.m                   % ntree method

I see the script I just created is the first item on the list. [I also receive warnings.]

You can see that the plot.m file MATLAB finds first is the one I created:

type plot.m

x = 1+1

I can run that script without a problem:

plot

x = 2

but if I try to call the plot function included in MATLAB I receive an error.

plot(1:10, 1:10)

Execution of script plot as a function is not supported:
/tmp/tp3a79b330_05bc_42e0_8712_09c278bc7e8b/plot.m

If I were to delete the plot.m script, I would be able to call the plot function in MATLAB.

Answer 1

[Alagu Sankar Esakkiappan]

Hi Jonathan,

Aforementioned error occurs as plot is already an internal implemented function in MATLAB. You may check if there is any internal implementation already done for any specific function using which commmand:

which plot -all

This problem can be resolved by using a different filename for the current script, which is not already used for any other internal function in MATALB.

[JONATHAN LAZZARESCHI]

Thank you

[Ashley Bragg]

mine is giving me the same error, except mine is named "HW2Problem1"

[Ali Roozpeykar]

Hi, I've came across the same error in MATLAB and I've changed the flinename for the script multiple times but it doesn't fix the issue.

[Steven Lord]

For the script that is listed in the error message you receive, what does the command posted in the accepted answer show when you run it using that script name? So if your error message says that "Execution of script max as a function is not supported" (instead of plot) you would type:

which max -all

built-in (/MATLAB/toolbox/matlab/datafun/max)
built-in (/MATLAB/toolbox/matlab/datafun/@double/max)            % double method
built-in (/MATLAB/toolbox/matlab/datafun/@int16/max)             % int16 method
built-in (/MATLAB/toolbox/matlab/datafun/@int32/max)             % int32 method
built-in (/MATLAB/toolbox/matlab/datafun/@int64/max)             % int64 method
built-in (/MATLAB/toolbox/matlab/datafun/@int8/max)              % int8 method
built-in (/MATLAB/toolbox/matlab/datafun/@logical/max)           % logical method
built-in (/MATLAB/toolbox/matlab/datafun/@single/max)            % single method
built-in (/MATLAB/toolbox/matlab/datafun/@uint16/max)            % uint16 method
built-in (/MATLAB/toolbox/matlab/datafun/@uint32/max)            % uint32 method
built-in (/MATLAB/toolbox/matlab/datafun/@uint64/max)            % uint64 method
built-in (/MATLAB/toolbox/matlab/datafun/@uint8/max)             % uint8 method
/MATLAB/toolbox/matlab/datatypes/categorical/@categorical/max.m  % categorical method
/MATLAB/toolbox/matlab/datatypes/tabular/@tabular/max.m          % tabular method
/MATLAB/toolbox/matlab/datatypes/datetime/@datetime/max.m        % datetime method
/MATLAB/toolbox/matlab/datatypes/duration/@duration/max.m        % duration method
/MATLAB/toolbox/matlab/timeseries/@timeseries/max.m              % timeseries method
max is a built-in method                                         % connector.internal.LoggerLevel method
max is a built-in method                                         % matlab.internal.lang.capability.Capability method
max is a built-in method                                         % matlab.lang.OnOffSwitchState method
max is a built-in method                                         % matlab.internal.reference.property.RefEntityType method
max is a built-in method                                         % matlab.internal.reference.api.EntityPrecision method
max is a built-in method                                         % matlab.internal.reference.property.DeprecationStatus method
max is a built-in method                                         % matlab.internal.reference.property.FunctionType method
max is a built-in method                                         % matlab.internal.reference.property.SyntaxType method
max is a built-in method                                         % matlab.internal.reference.api.EntityCaseSensitivity method
max is a built-in method                                         % simulink.FindSystemTask.Status method
max is a built-in method                                         % mf.zero.meta.Language method
max is a built-in method                                         % dig.config.CommandType method
max is a built-in method                                         % dig.config.HorizontalAlignment method
max is a built-in method                                         % dig.model.DisplayState method
max is a built-in method                                         % dig.model.EventDataType method
max is a built-in method                                         % dig.model.FunctionType method
max is a built-in method                                         % dig.model.ValidInBdType method
max is a built-in method                                         % dig.model.ViewMode method
max is a built-in method                                         % dastudio_util.cooperative.AsyncFunctionRepeaterTask.Status method
max is a built-in method                                         % coderdictionary.data.AccessFunctionSignaturesEnum method
max is a built-in method                                         % coderdictionary.data.AccessInterfaceEnum method
max is a built-in method                                         % coderdictionary.data.AccessModeEnum method
max is a built-in method                                         % coderdictionary.data.AllowedAccessEnum method
max is a built-in method                                         % coderdictionary.data.DataAccessEnum method
max is a built-in method                                         % coderdictionary.data.DataAccessTypeEnum method
max is a built-in method                                         % coderdictionary.data.DataInitEnum method
max is a built-in method                                         % coderdictionary.data.DataInstantiationEnum method
max is a built-in method                                         % coderdictionary.data.DataTypeScopeEnum method
max is a built-in method                                         % coderdictionary.data.LatchingModeEnum method
max is a built-in method                                         % coderdictionary.data.PlacementEnum method
max is a built-in method                                         % coderdictionary.data.ScopeEnum method
max is a built-in method                                         % coderdictionary.data.StatementsSurroundEnum method
max is a built-in method                                         % coderdictionary.data.StatusEnum method
max is a built-in method                                         % matlab.unittest.internal.fixtures.FolderScope method
max is a built-in method                                         % matlab.automation.Verbosity method
max is a Java method                                             % java.lang.Long method
max is a Java method                                             % java.lang.Double method
max is a built-in method                                         % matlab.internal.timer.CallBackTypeEnum method
max is a built-in method                                         % matlab.internal.timer.BusyModeEnum method
max is a built-in method                                         % matlab.internal.timer.ExecutionModeEnum method
max is a built-in method                                         % matlab.graphics.chart.internal.ParserState method
/MATLAB/toolbox/matlab/bigdata/@tall/max.m                       % tall method
/MATLAB/toolbox/coder/half/@half/max.p                           % half method
/MATLAB/toolbox/nnet/deep/@dlarray/max.m                         % dlarray method
/MATLAB/toolbox/parallel/gpu/@gpuArray/max.m                     % gpuArray method
/MATLAB/toolbox/parallel/parallel/@codistributed/max.m           % codistributed method
/MATLAB/toolbox/symbolic/symbolic/@sym/max.m                     % sym method

[Divya]

Still I'm not getting the figure

[DGM]

Nobody knows what your filenames/path are, what errors you're seeing, or what you tried to do to fix it. It's up to you to describe the problem you have.

Is the error the same error as in the title? If so, what's the output of which()?

Answer 2

[Junran Chen]

Hi, change your file name from plot.m to another thing will work.

[Ahmad Sharif]

It worked to me. My filname is subplot.m

[DINESH PRASAD REDDY]

GOAT

Answer 3

[Xinchang]

Hi, Jonathan,

I had the same issue which has been solved now. The reason is that he name of my script is plot.m which same as one of the MATLAB function (plot) names. After I change it the output is normal. You can change the script name like test.m and try again.