Fig. 5.

(a) Comparison of the $R_{0,1,0}^n$ with $R_{\mathrm{linear}}^n$ which are denoted by the symbols ($\cdot$) and ($\circ$), respectively. (b) A magnified view of a rectangular box in (a). (c) Error for $R_{0,1,0}^n$ from 20 May 2015 to 17 July 2015. (d) A magnified view of a rectangular box in (c) from 18 June 2015 to 17 July 2015.