Dear List

I am trying to use gam function in mgcv 17.26. I have a big data set of
about 40,000 data points. Every time that I run it ,it results in GCV score
of "0"

 

Family: gaussian 

Link function: identity 

 

Formula:

D ~ s(Ghazl_res) + s(Depth)

 

Estimated degrees of freedom:

3.77 2.91  total = 7.68 

 

GCV score: 0

 

Plotting the curves of the predictor variables also gives a straight
horizontal line along the zero value of the y axis. I really couldn't
interpret whats going wrong. Appreciate it if anyone can comment

 

Husam El Alqamy,  B.Sc, M.Phil.

Sr. Biodiversity GIS Analyst,

Enivronmental Information Sector

Environment Agency - Abu Dhabi

 


	[[alternative HTML version deleted]]