Error with adding Gaussian Noise

Please can anyone take a look at the error I am getting after adding a Gaussian Noise to my fault signal. The error is realetd to the colum dimension of my ENER TAB and how it can be expanded

[John Amoo-Otoo]

Attached is the error page

Answer 1

[Nihal]

It seems like the error message you provided indicates that there is an issue with a variable or function named signal. This kind of error typically occurs when a variable or function is not defined or is out of scope. Here are some steps to help you diagnose and fix the issue:

1. Check Variable/Function Definition: Ensure that signal is defined before you use it. For example, if signal is supposed to be a variable holding your fault signal, make sure it is initialized properly.
2. Check Scope: Make sure that signal is within the scope where you are trying to use it. If signal is defined inside a function, it won't be accessible outside that function.
3. Check Spelling: Ensure that there are no typos in the variable or function name. It should be consistent throughout your code.