Table 15 Comparison of actual value and predicted value of \(ReZG_2(G)\) for different \((Cz-Dpp)\) structures.

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

Index

First Zagreb

Actual value

Prediction value

Error

Absolute error

% Error

1

320

78.5

78.500033

\(-\)3.3E-05

0.000033

0.000042

2

514

125.9

125.900053

\(-\)5.3E-05

0.000053

0.000042

3

708

173.3

173.300073

\(-\)7.3E-05

0.000073

0.000042

4

902

220.7

220.700093

\(-\)9.3E-05

0.000093

0.000042

5

1096

268.1

268.100113

\(-\)0.000113

0.000113

0.000042

6

1290

315.5

315.500133

\(-\)0.000133

0.000133

0.000042

7

1484

362.9

362.900153

\(-\)0.000153

0.000153

0.000042

8

1678

410.3

410.300173

\(-\)0.000173

0.000173

0.000042

9

1872

457.7

457.700193

\(-\)0.000193

0.000193

0.000042

10

2066

505.1

505.100213

\(-\)0.000213

0.000213

0.000042