How to resolve Undefined function or variable error?

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Manzoor Hussain
Manzoor Hussain 2018-12-12
编辑： Walter Roberson 2018-12-13
Hi,
I had completed my project. That was working fine on another computer. When copied it on my laptop. It starts giving error on every function i defined. Giving "Undefined function or variable" error.
So how to resolve this issue? What is the possible solution for this cause?
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Adam Danz
Adam Danz 2018-12-13
As mentioned above by others, one of the following circumstances is probably causing the error.
  1. You are missing a function.
  2. You are not missing a function but the function is not on the matlab path.
  3. You are missing an entire toolbox
  4. You're using a different version of matlab that lacks a function.
  5. Perhaps one version uses a global variable that isn't declared in the other version.
You provided your code but you didn't tell us what line is causing the error. If you include the full error message that will be helpful.
Walter Roberson
Walter Roberson 2018-12-13
编辑：Walter Roberson 2018-12-13
It starts giving error on every function i defined
The location you copied the files into is not your current directory and is not on your MATLAB path. Use pathtool to add the directory to your path.
There is one other alternative: you might have defined the functions with a file name in a different case (upper / lower case) than the name of the function, and the file system you were using originally was not case sensitive, but the new file system is case sensitive. For example NTFS filesystems are not typically set to be case sensitive, so RDsamp.m would be considered the same file as rdsamp.m, but Linux filesystems usually are case sensitive, so RDsamp.m would not be looked for when looking for function rdsamp

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