Hi Shuping,
I understand that you are facing error of "Dot Indexing is not supported", without the code used and steps to reproduce the issue it will be difficult to provide a precise solution.
The error “Dot Indexing is not supported for variable of this type” typically occurs when you’re trying to access a property or method of a variable using dot notation, but the variable is not an object or structure that supports this type of indexing.
In the context of EEG processing, this error might occur due to several reasons:
- Mismatch in Data Types: The EEG data file you’re trying to process might not be in the expected format or data type. For instance, the processing pipeline might be expecting a structure, but the data file is in a different format.
- Variable Overwriting: If a variable of the same name already exists in your workspace and is not of the type that supports dot indexing, you might encounter this error. You can either delete the variable using clear, or overwrite the contents of the variable using the struct function.
To debug this issue, you can set an error breakpoint and run your code. If this problem occurs again, MATLAB will enter debug mode where the error occurs. You can then examine the variables on that line.
If the issue persists, you might want to check the compatibility of your EEG data file (mff file) with the processing pipeline. It’s possible that the pipeline works with one version of the mff file but not with another. You might need to convert or preprocess your EEG data file to make it compatible with the pipeline.
I hope this helps!
