Fig. 7
From: MEM spectral analysis for predicting influenza epidemics in Japan
Weekly incidence data of influenza in Japan from January 1987 to October 2010: a the original data, b comparison of the LSF curve (solid line) and the residual data of the original data (dotted line). Small vertical line indicates the boundary between the analysis and prediction ranges. Gray lines: 95% confidence interval. c Contribution ratios in the analysis range (January 1987–December 1996), prediction range (January 1997–October 2010), and shorter-term prediction range (January 1997–December 1998) (filled circles, open circles, and multiplication symbols, respectively)