Fig. 2
From: Early detection of dark-affected plant mechanical responses using enhanced electrical signals
Data preprocessing. A The electrical signal between the “start” and “stop” window was extracted from each raw recording as the useful signal. The horizontal axis shows the number (num) of the data points within the sample. B The values of every 100 data points in the window of A were averaged and the resulting mean trace is shown. The horizontal axis was converted to show the duration (s) within the window. C The mean trace in B was equalized with a length of 411 s by filling the sample with the value of the last data point. D Normalization and alignment of the equalized trace in C