[R] gam.plot y axes meaning

[David Nogués]

Hello to everybody:

Im starting to work with GAM using mgcv in R. When I plot a gam object 
using gam.plot, the y axes is labelled s(cov,edf), but I dont undertand 
what means the units of  y axes (is related with the predictor variable?).

Thanks in advance

-- 
David Nogués Bravo

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