Fig. 2From: Intra-tidal PaO2 oscillations associated with mechanical ventilation: a pilot study to identify discrete morphologies in a porcine modelMean value of all normalized PaO2 waveforms along with the first five eigenfunctions from functional principal component analysis (PC1 to PC5). Each individual normalized PaO2 waveform can be estimated as a sum of the mean waveform with varying multiples (principal component estimates) of each eigenfunction. Light grey background denotes inspirationBack to article page