PSD plots display incorrect axis

💬 Support & Discussions
1
  • MNE version 1.3.1
  • Ubuntu 20.04 running in WSL vscode Jupyter

Hello! I am trying to plot the power spectrum density of my eeg data, but the axis does not display properly:

image
image1087×465 86.3 KB

PSD should never have negative values from my understanding, since it is squared units. I even verified this by running the get_data() function. Does anyone know why this is occurring or run into a similar problem? Thanks!

2

It’s the power plotted on a dB scale, hence values can be negative.

Best wishes,
Richard

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