Surface Evaluation by Estimation of Fractal Dimension and Statistical Tools

Table 2

Correlation coefficients of parameters (-axis).

	proportional length,	relative length,	EEE dimension,	compass dimension,	mean spacing, µm	mean roughness depth, µm	maximum roughness, µm	Average roughness, µm	Std standard deviation, µm
Standard deviation, Std  [µm]	0.92	0.92	0.90	0.74	0.37	0.98	0.99	1.00*	1.00
Average roughness,   [µm]	0.92	0.92	0.89	0.74	0.37	0.98	0.98	1.00
Maximum roughness,   [µm]	0.93	0.93	0.92	0.79	0.34	0.99	1.00
Mean roughness Depth,   µm	0.95	0.95	0.94	0.81	0.33	1.00
Mean spacing,   µm	0.25	0.25	0.22	0.15	1.00
Compass dimension,	0.85	0.85	0.94	1.00
EEE dimension	0.96	0.96	1.00
Relative length,	1.00*	1.00
Proportional length,	1.00

The correlation coefficient is rounded up to 1.00, but is not equal to 1.