Fig. 1
(a) Data for Fig. 1(a) are in the labelled columns 1-4 of Fig1a&b.txt. (b) Data for Fig. 1(b) are in labelled columns 5-8 of Fig1a&b.txt.

Fig. 2
(a) Data for Fig. 2(a) are in the four labelled columns of Fig2a.txt
(b)-(h) Data underpinning images Fig.2(a)-(h) are saved in 128*128 pixel square arrays contained in Fig2b.txt (space delimited), Fig2c.txt (space delimited), Fig2d.txt (space delimited), Fig2e.txt (space delimited), Fig2f.txt (space delimited), fig2g.txt (space delimited) and Fig2h.txt (tab delimited).


Fig. 3
Data for Fig. 3 are in the nineteen labelled columns 1-19 of Fig3.txt. 

Fig. 4
Data for Fig. 4 are in the four labelled columns 1-4 of Fig4.txt.