Undefined Function or variable Error

I tried a code with a filename jesuschrist.m. Always says Undefined function or variable 'jesuschrist'.

Any help is appreciated.

Thanks

Answer 1

[Adam]

Is the file on your Matlab path? In order for Matlab to see it and run it it must be on your path.

[Jab]

Could you please tell me how do I check whether it is in Matlab path or not? I saved the file on the D drive and runned it

[Walter Roberson]

which -all jesuschrist

You may have to use pathtool to add the directory to your MATLAB path.

[Jab]

which -all jesuschrist

D:\ADNI1 Screening 1.5T(1075)\code\jesuschrist.m

This is the result i got

[Jab]

I have added using pathtool function. but still getting the same error

[Walter Roberson]

Is it a script or is it a function? If it is a function then what is the first line of the file?

[Jab]

it is a script which contains the following

clc;
clear all;
close all;
load fullFileName;
load M;

[Walter Roberson]

You need to get rid of the "clear all"

[Jab]

i tried that too.still facing the problem

[Walter Roberson]

Experiment with

run('D:\ADNI1 Screening 1.5T(1075)\code\jesuschrist.m')

[Jab]

totally frustrating!!! reinstalled matlab. not yet fixed

Answer 2

[Image Analyst]

clear all doesn't matter - getting rid of that won't fix it as you found out.

Also, you did not get the error message "Undefined function or variable 'jesuschrist'."

You got the error message "Undefined function or variable 'fullFileName'." The reason is that once you started running jesuschrist, it hit that line and realized that fullFileName had not yet been defined by the time it needed to use it. Even after you fix that, you'll get the same problem with M because you did not define M either.

To fix, put this code right before your call to load():

% Have user browse for a file, from a specified "starting folder."
% For convenience in browsing, set a starting folder from which to browse.
startingFolder = 'C:\Program Files\MATLAB';
if ~exist(startingFolder, 'dir')
  % If that folder doesn't exist, just start in the current folder.
  startingFolder = pwd;
end
% Get the name of the file that the user wants to use.
defaultFileName = fullfile(startingFolder, '*.*');
[baseFileName, folder] = uigetfile(defaultFileName, 'Select a file');
if baseFileName == 0
  % User clicked the Cancel button.
  return;
end
fullFileName = fullfile(folder, baseFileName)

[Jab]

I am getting the error message

with the filename as Undefined function or variable 'jesuschrist'.

I have the other two files in the folder where the jesuschrist file exist

[Walter Roberson]

No, fullFileName appears as a string in the posted code, not as a variable.

load fullFileName

is

load('fullFileName')

Of course if there is no .mat named literally fullFileName.m then there would be a problem.