Figure 6 Performance of mosaic area estimation applied to
ranges having six different shapes and sizes that vary from one trial to
the next: 2 x 1 rectangles with one quarter removed (green); pairs of
squares separated by one unit of distance horizontally and vertically
(reddish violet); 4 x 1 rectangles (turquoise); squares (gold); rings
with holes equal in diameter to that of the outer circle times 0.707, so
half the area is empty (purple); and circles (red).r 2 = 0.9161 (three-quarter squares), 0.9535
(pairs of squares ), 0.9268 (4 x 1 rectangles), 0.9233 (squares), 0.9583
(rings), and 0.9317 (circles). Sample size is 10 data points. Data for
each shape are offset by a factor of 104 for clarity;
y-axis scale applies to the lowermost set.