Figure 7
From: Nonlinear frequency analysis of COVID-19 spread in Tokyo using empirical mode decomposition

Comparison between the weekly denoised trend and the decomposed IMF\(_3\) Hilbert spectrum.
From: Nonlinear frequency analysis of COVID-19 spread in Tokyo using empirical mode decomposition

Comparison between the weekly denoised trend and the decomposed IMF\(_3\) Hilbert spectrum.