Figure 4
From: Methods for serial analysis of long time series in the study of biological rhythms
Transfer functions corresponding to the application of a moving average in a series with a sampling interval of 15 min. Periods are represented in the abscissas (in minutes), and in the ordinates is the ratio of pass for different periods. In A, continuous line is for an interval of 5 points (1 h), dotted line for 9 points (2 h) and dashed line for 17 points (4 h). In B, real transfer function for pink noise using a moving average (dotted line) and a moving median with the same interval (continuous line).