ModuleNotFoundError No module named mlxtend

This error occurs when you try to import the 'mlxtend' module in Python but it is not installed on your system.

To resolve this error, you need to install the 'mlxtend' module. You can install it using pip, which is the package installer for Python.

To install 'mlxtend' using pip, open your command prompt or terminal and type the following command:

pip install mlxtend

This will install the 'mlxtend' module and you should be able to import it in your Python code without any errors.