Table 38 Comprehensive descriptive statistics of topological indices.

From: Data-driven analysis of chemical graph of carbazole and diketopyrrolopyrrole

Index

Mean

Median

Variance

Std. dev

Range

IQR

Skewness

Kurtosis

Q2Value

\(\lambda _1(G)\)

1296.00

1290.00

296947.5

544.92

1746

936.5

0.00

1.79

1.000

\(\lambda _2(G)\)

1620.90

1625.00

464300.5

681.40

1980

1170.5

0.01

1.81

0.621

\(\lambda _3(G)\)

6640.00

6640.00

7769636.0

2786.19

8054

4460.5

0.02

1.85

\(-\)95.242

\(R\lambda _1(G)\)

547.00

547.00

53334.5

230.94

657

348.5

0.00

1.76

\(-\)0.889

\(R\lambda _2(G)\)

590.00

590.00

61599.5

247.98

770

412.5

0.01

1.79

0.640

AZI(G)

2260.39

2260.39

902270.0

949.86

2363

1390.5

0.02

1.83

\(-\)2.150

\(ReZG_1(G)\)

210.00

210.00

7851.5

88.65

276

176.5

0.00

1.71

\(-\)2.917

\(ReZG_2(G)\)

315.50

315.50

17719.0

133.05

279

202.5

0.01

1.73

\(-\)2.187

\(ReZG_3(G)\)

8510.00

8510.00

12736961.0

3568.57

11258

5860.5

0.02

1.88

\(-\)174.507