Component topography in Part 4 of Tutorial 13


I found the amplitude of my component topography was the opposite of the example when I practiced your providing data in Part 4 of Tutorial 13 step by step (The data I used was "sample_introduction"). Specifically, the red area and the blue bird area are opposite. My picture is as follows.

What could be causing this and is there a way to change it? Thanks a lot.


The polarity of the components do not matter and are produced by the SSP statistical analysis of the events of interest. However, please see my reply to your other post re: the time series of the component in question.

Thanks a lot, my problem has been solved.