Matlab online error while rendering plots

Whenever I try to plot some function using Matlab online I see the following error. Can someone suggest some workarounds for this issue?

Warning: Error occurred while executing the listener callback for event POST_REGION defined for class matlab.internal.language.RegionEvalutor:
Too many input arguments

Error in flipud (line 14)
x = flip(x, 1);

Error in matlab.internal.editor.FigureManager
Error in matlab.internal.editor.FigureManager
Error in matlab.internal.editor.FigureManager
Error in matlab.internal.editor.FigureManager.snapshotAllFigures

[dpb]

Well, I never use ML online, but I'm sure this isn't generic -- dunno why plot would be calling flip; show us the specific code that will generate the error and the error in context...

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/497549-warning-while-trying-to-filter-rgb-values-on-a-picture#

Answer 1

[Steven Lord]

My suspicion is that you've written your own flip.m or flipud.m that's preventing MATLAB from calling the flip or flipud functions included in MATLAB. To check this:

which -all flip

/MATLAB/toolbox/matlab/elmat/flip.m
built-in                                               % Shadowed char method
built-in                                               % Shadowed double method
built-in                                               % Shadowed int16 method
built-in                                               % Shadowed int32 method
built-in                                               % Shadowed int64 method
built-in                                               % Shadowed int8 method
built-in                                               % Shadowed logical method
built-in                                               % Shadowed single method
built-in                                               % Shadowed uint16 method
built-in                                               % Shadowed uint32 method
built-in                                               % Shadowed uint64 method
built-in                                               % Shadowed uint8 method
flip is a built-in method                              % Shadowed connector.internal.LoggerLevel method
flip is a built-in method                              % Shadowed matlab.internal.lang.capability.Capability method
flip is a built-in method                              % Shadowed matlab.lang.OnOffSwitchState method
flip is a built-in method                              % Shadowed matlab.internal.reference.property.RefEntityType method
flip is a built-in method                              % Shadowed matlab.internal.reference.api.EntityPrecision method
flip is a built-in method                              % Shadowed matlab.internal.reference.property.DeprecationStatus method
flip is a built-in method                              % Shadowed matlab.internal.reference.property.FunctionType method
flip is a built-in method                              % Shadowed matlab.internal.reference.api.EntityCaseSensitivity method
flip is a built-in method                              % Shadowed mf.zero.meta.Language method
flip is a built-in method                              % Shadowed dig.config.CommandType method
flip is a built-in method                              % Shadowed dig.config.HorizontalAlignment method
flip is a built-in method                              % Shadowed dig.model.DisplayState method
flip is a built-in method                              % Shadowed dig.model.EventDataType method
flip is a built-in method                              % Shadowed dig.model.FunctionType method
flip is a built-in method                              % Shadowed dig.model.ValidInBdType method
flip is a built-in method                              % Shadowed dig.model.ViewMode method
flip is a built-in method                              % Shadowed simulink.FindSystemTask.Status method
flip is a built-in method                              % Shadowed sl.data.adapter.AdapterDiagnostic method
flip is a built-in method                              % Shadowed sl.data.adapter.AdapterType method
flip is a built-in method                              % Shadowed sl.data.adapter.ChangeType method
flip is a built-in method                              % Shadowed slid.SourceIssue method
flip is a built-in method                              % Shadowed slid.broker.SourceManagerSourceKind method
flip is a built-in method                              % Shadowed dastudio_util.cooperative.AsyncFunctionRepeaterTask.Status method
flip is a built-in method                              % Shadowed coderdictionary.data.AccessFunctionSignaturesEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.AccessInterfaceEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.AccessModeEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.AllowedAccessEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.DataAccessEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.DataAccessTypeEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.DataInitEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.DataInstantiationEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.LatchingModeEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.PlacementEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.ScopeEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.StatementsSurroundEnum method
flip is a built-in method                              % Shadowed coderdictionary.data.StatusEnum method
flip is a built-in method                              % Shadowed matlab.unittest.Verbosity method
flip is a built-in method                              % Shadowed matlab.unittest.internal.fixtures.FolderScope method
flip is a built-in method                              % Shadowed matlab.internal.timer.CallBackTypeEnum method
flip is a built-in method                              % Shadowed matlab.internal.timer.BusyModeEnum method
flip is a built-in method                              % Shadowed matlab.internal.timer.ExecutionModeEnum method
/MATLAB/toolbox/matlab/bigdata/@tall/flip.m            % Shadowed tall method
/MATLAB/toolbox/parallel/gpu/@gpuArray/flip.m          % Shadowed gpuArray method
/MATLAB/toolbox/parallel/parallel/@distributed/flip.m  % Shadowed distributed method

which -all flipud

/MATLAB/toolbox/matlab/elmat/flipud.m
/MATLAB/toolbox/matlab/bigdata/@tall/flipud.m            % Shadowed tall method
/MATLAB/toolbox/finance/ftseries/@fints/flipud.m         % Shadowed fints method
/MATLAB/toolbox/parallel/gpu/@gpuArray/flipud.m          % Shadowed gpuArray method
/MATLAB/toolbox/parallel/parallel/@distributed/flipud.m  % Shadowed distributed method

If one of those shows your own custom flip.m or flipud.m, rename that custom function.

[Walter Roberson]

Might possibly be SPM12 "compatability" functions, which these days nearly everyone needs to disable manually

[Srinidhi P V]

Hey. Thanks for the responses! I noticed that one of the libraries that I had imported had a function flip.m which was causing the conflict. I resolved the errors by renaming the file and function.

I think we can go ahead and close this question.