Improving Regional Dynamic Downscaling with Multiple Linear Regression Model Using Components Principal Analysis: Precipitation over Amazon and Northeast Brazil

Table 4

𝐹-test, 𝑃 value, and 𝑅² for PCR and AA methods, to the North and Northeast domain.

Region	Method	Estatística-𝐹	Valor-𝑃	𝑅²
Amazon	PCR	7.795	3.279 · 10^−7	0.399
Amazon	AA	35.51	5.13 · 10^−8	0.287
Northeast	PCR	10.78	2.552 · 10^−9	0.501
Northeast	AA	67.05	3.195 · 10^−12	0.452