Troubleshooting Missing MATLAB Toolbox Functions

  • Context: MATLAB 
  • Thread starter Thread starter mikeph
  • Start date Start date
  • Tags Tags
    Function
Click For Summary
SUMMARY

The discussion addresses the issue of a missing MATLAB toolbox function, specifically the fanbeam.m function. The user encountered an error when attempting to use the function and discovered that a conflicting m-file was present in their MATLAB folder, which took precedence over the toolbox function. By renaming the conflicting file, the user successfully resolved the issue and restored functionality to the fanbeam.m function.

PREREQUISITES
  • Familiarity with MATLAB environment and file management
  • Understanding of MATLAB toolbox functions
  • Knowledge of MATLAB command "which" for locating functions
  • Basic troubleshooting skills in programming
NEXT STEPS
  • Research how to manage MATLAB paths effectively
  • Learn about MATLAB function precedence and conflicts
  • Explore the MATLAB documentation for toolbox functions
  • Investigate best practices for naming m-files in MATLAB
USEFUL FOR

This discussion is beneficial for MATLAB users, particularly those troubleshooting toolbox function issues, developers working with custom m-files, and anyone looking to optimize their MATLAB environment.

mikeph
Messages
1,229
Reaction score
18
I'm trying to use the fanbeam.m function for some experimenting and when I select the example in the help file and press F9, I'm getting an error on the line where it uses the function.

I type "help fanbeam" and get No help found for fanbeam.m.

I may have written an m-file called this in the past, it's the only reason I can think it wouldn't work, but this file is not in my workspace at the moment.

Any ideas why this MATLAB toolbox function is missing/lost?

Thanks
 
Physics news on Phys.org
What does Matlab say when you type "which fanbeam"? If you don't get anything, it means the function is missing from the path. If that's the case, then either the m file is missing, or the path is missing the proper folder. If you get a path, and it's not the toolbox path, then you have another fanbeam.m file which takes precedence.
 
caffenta said:
What does Matlab say when you type "which fanbeam"? If you don't get anything, it means the function is missing from the path. If that's the case, then either the m file is missing, or the path is missing the proper folder. If you get a path, and it's not the toolbox path, then you have another fanbeam.m file which takes precedence.

It's in the MATLAB folder! I guess it takes precedence, did not realize it would look outside of the workspace!

Renamed it and it's working perfectly now! Thanks.
 

Similar threads

MATLAB [~,~,~,~,~,~,~,~,spec] Too many output arguments...
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Get the time axis right in an inverse Fast Fourier Transform
  • · Replies 2 ·
Replies
2
Views
3K
MATLAB How can I import multiple .csv files into MATLAB using a loop?
  • · Replies 5 ·
Replies
5
Views
3K
MATLAB Replacing the "quad" function with "integral" doesn't work in Matlab
  • · Replies 1 ·
Replies
1
Views
3K
MATLAB Error in MATLAB Code: Fixing 'Function 'diff' is Not Supported
  • · Replies 3 ·
Replies
3
Views
4K
MATLAB Matlab errors in initialization
  • · Replies 1 ·
Replies
1
Views
9K
MATLAB Transfer equations from MathType to Matlab
  • · Replies 7 ·
Replies
7
Views
8K
MATLAB User Specifying a Fit Function in a Separate File
  • · Replies 1 ·
Replies
1
Views
2K
MATLAB MATLAB: How to add initial states to a circuit simulation
  • · Replies 2 ·
Replies
2
Views
4K
MATLAB Matlab deployment Error because of folder permissions
  • · Replies 2 ·
Replies
2
Views
2K