Table 18 Picture fuzzy rough sets for the TRM

CN1

(⌈0.13,0.90⌋,⌈0.91,3.23⌋,⌈0.35,0.974⌋,⌈0,0.45⌋)

(⌈0.21,1.36⌋,⌈0.85,3.66⌋,⌈0.32,1.14⌋,⌈0,0.60⌋)

(⌈0.17,1.26⌋,⌈0.97,3.10⌋,⌈0.45,1.24⌋,⌈0,0.72⌋)

(⌈0.20,1.43⌋,⌈0.85,3.66⌋,⌈0.29,1.08⌋,⌈0,0.56⌋)

(⌈0.20,1.20⌋,⌈1.34,3.66⌋,⌈0.50,1.21⌋,⌈0,0.67⌋)

CN2

(⌈0.47,1.2⌋,⌈0.88,2.91⌋,⌈0.34,0.90⌋,⌈0,0.29⌋)

(⌈0.14,1.30⌋,⌈0.59,2.94⌋,⌈0.16,0.79⌋,⌈0,0.24⌋)

(⌈0.20,1.44⌋,⌈0.83,2.67⌋,⌈0.29,1.05⌋,⌈0,0.51⌋)

(⌈0.34,1.58⌋,⌈0.73,3.16⌋,⌈0.23,0.84⌋,⌈0,0.26⌋)

(⌈0.20,1.37⌋,⌈1.08,3.10⌋,⌈0.32,1.07⌋,⌈0,0.56⌋)

CN3

(⌈0.29,1.16⌋,⌈1.05,3.38⌋,⌈0.41,0.96⌋,⌈0,0.44⌋)

(⌈0.30,1.43⌋,⌈0.85,3.66⌋,⌈0.29,0.92⌋,⌈0,0.35⌋)

(⌈0.16,1.17⌋,⌈0.83,2.94⌋,⌈0.23,0.82⌋,⌈0,0.30⌋)

(⌈0.36,1.51⌋,⌈0.85,3.66⌋,⌈0.26,0.83⌋,⌈0,0.30⌋)

(⌈0.25,1.26⌋,⌈1.39,3.66⌋,⌈0.45,1.01⌋,⌈0,0.48⌋)

CN4

(⌈0.19,0.80⌋,⌈1.20,3.47⌋,⌈0.75,1.15⌋,⌈0.64,1 ⌋)

(⌈0.18,1.07⌋,⌈0.97,3.64⌋,⌈0.50,1.15⌋,⌈0,0.65⌋)

(⌈0.25,1.03⌋,⌈1.24,3.19⌋,⌈0.57,1.17⌋,⌈0,0.65⌋)

(⌈0.18,0.97⌋,⌈0.83,3.48⌋,⌈0.27,0.83⌋,⌈0,0.32⌋)

(⌈0.27,0.98⌋,⌈1.59,3.70⌋,⌈0.63,1.14⌋,⌈0,0.58⌋)

CN5

(⌈0.39,0.97⌋,⌈1.16,3.19⌋,⌈0.61,0.82⌋,⌈0.31,1 ⌋)

(⌈0.40,1.33⌋,⌈0.85,3.40⌋,⌈0.32,0.78⌋,⌈0,0.24⌋)

(⌈0.56,1.28⌋,⌈0.97,2.87⌋,⌈0.38,0.78⌋,⌈0,0.19⌋)

(⌈0.63,1.40⌋,⌈0.85,3.34⌋,⌈0.29,0.67⌋,⌈0,0.14⌋)

(⌈0.24,1.019⌋,⌈1.14,3.18⌋,⌈0.32,0.68⌋,⌈0,0.19⌋)