A Multistep Direct and Indirect Strategy for Predicting Wind Direction Based on the EMD-LSTM Model

Table 4

Correlation coefficient between IMF components and wind direction.

IMF	Correlation coefficient
IMF-1	0.415
IMF-2	0.240
IMF-3	0.177
IMF-4	0.009
IMF-5	0.317
IMF-6	0.497
IMF-7	0.375
IMF-8	0.429
IMF-9	0.081
Residual	−0.043

The closer the correlation coefficient is to 1, the stronger correlation between the IMF component and the original data.