A Conjunction Method of Wavelet Transform-Particle Swarm Optimization-Support Vector Machine for Streamflow Forecasting

Table 1

The correlation coefficients between subtime series and original streamflow data.

Discrete wavelet components	Correlations
	𝐷𝑡−1 and 𝑄𝑡	𝐷𝑡−2 and 𝑄𝑡	𝐷𝑡−3 and 𝑄𝑡	Average
𝐷1	0.103	−0.003	0.105	0.070
𝐷2	−0.081	0.084	0.328	0.164
𝐷3	−0.023	0.295	0.459	0.259
𝐴	0.211	0.390	0.488	0.363