A Risk-Free Discount Rate Prediction Model for Mineral Project Evaluation Using a Hybrid Discrete Wavelet Transform and Artificial Neural Network

Table 3

Input variables and parameters.

Component	Input variables	Output variable
a4	[a4i-3, a4i-2, a4i-1]	a4i
d1	[d1i-2, d1i-1]	d1i
d2	[d2i-2, d2i-1]	d2i
d3	[d3i-2, d3i-1]	d3i
d4	[d4i-3, d4i-2, d4i-1]	d4i
X	[X4i-4, X4i-3, X4i-2, Xi-1]	X i