Re: [R] MGCV: Degrees of freedom of smooth terms

2013-07-25 Thread Gavin Simpson
On Tue, 2013-07-23 at 11:16 +0200, Christoph Scherber wrote: > Dear all, > > This is just a quick question regarding degrees of freedom in GAM > models fit by MGCV (using select=T): > > Can I roughly interpret them as: > > 1 df: linear effect of x on y > 2 df: approximately quadratic of x on y >

[R] MGCV: Degrees of freedom of smooth terms

2013-07-23 Thread Christoph Scherber
Dear all, This is just a quick question regarding degrees of freedom in GAM models fit by MGCV (using select=T): Can I roughly interpret them as: 1 df: linear effect of x on y 2 df: approximately quadratic of x on y 3 df: approximately cubic effect of x on y? 1 df for a spatial term s(x,y): bil