Construction of a Fundamental Quantitative Evaluation Model of the A-Share Listed Companies Based on the BP Neural Network

Table 6

Part of test results of BP neural network.

Sample	Expected output	Actual output	Relative error (%)
TE1	49.36534	49.36480	0.00109
TE2	58.05768	58.05710	0.00100
TE3	52.53170	52.53105	0.00125
TE4	44.80344	44.80370	0.00058
TE5	51.88164	51.88119	0.00087
TE6	47.13900	47.13851	0.00105
TE7	55.08644	55.08563	0.00147
TE8	62.44150	62.44073	0.00122
TE9	56.11946	56.11873	0.00129
TE10	44.80488	44.80430	0.00129
TE11	54.30785	54.30721	0.00118
TE12	56.28334	56.28285	0.00087
TE13	55.43343	55.43308	0.00064
TE14	53.17385	53.17326	0.00111
TE15	47.63893	47.63834	0.00124
TE16	45.67614	45.67584	0.00066
TE17	61.13550	61.13490	0.00098
TE18	55.73245	55.73178	0.00121
TE19	51.39826	51.39782	0.00084
TE20	55.22763	55.22727	0.00064