Selected input combinations for the prediction of discharge coefficient under both free and submerged conditions were extracted through a large number of trial-and-error processes and listed in Table 3. Statistical information of input and output parameters in terms of the maximum (max), minimum (min), mean and standard deviation (S.td.) values is represented in Table 4.

Table 3

Selected input combinations for prediction of discharge coefficient of radial gates

Free flow .		Submerged flow .
Model .	Input parameters .	Model .	Input parameters .
F(I)		S(I)
F(II)		S(II)
F(III)		S(III)
F(IV)		S(IV)

Free flow .		Submerged flow .
Model .	Input parameters .	Model .	Input parameters .
F(I)		S(I)
F(II)		S(II)
F(III)		S(III)
F(IV)		S(IV)

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Table 4

The statistical details of the input and output parameters

.	.	Parameter .	Min .	Max .	Mean .	St.d. .
Free flow	Input parameters		0.255	0.559	0.418	0.063
			0.065	0.788	0.442	0.152
			1.54	64.55	6.06	8.50
			0.011	0.315	0.115	0.068
	Output parameter		0.432	0.684	0.597	0.047
Submerged flow	Input parameters		−0.949	28.5	2.37	4.58
			0.568	1.76	0.776	0.299
			0.299	0.845	0.584	0.123
			1.09	37.03	5.02	4.59
			0.010	0.642	0.187	0.119
	Output parameter		0.005	6.14	0.616	0.376

.	.	Parameter .	Min .	Max .	Mean .	St.d. .
Free flow	Input parameters		0.255	0.559	0.418	0.063
			0.065	0.788	0.442	0.152
			1.54	64.55	6.06	8.50
			0.011	0.315	0.115	0.068
	Output parameter		0.432	0.684	0.597	0.047
Submerged flow	Input parameters		−0.949	28.5	2.37	4.58
			0.568	1.76	0.776	0.299
			0.299	0.845	0.584	0.123
			1.09	37.03	5.02	4.59
			0.010	0.642	0.187	0.119
	Output parameter		0.005	6.14	0.616	0.376

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