Looking back at my post (Mar 26, 2013; 7:28am Re: [R] Use pcls in "mgcv"
package to achieve constrained cubic spline), it seems to me that you
could use the same trick, but omit the `-1' from the model formula. i.e.
you set up a bunch of smooths constrained to pass through zero at zero,
but lea
I wish to compare several "products" in terms of their dose-response
functions as estimated by smooths via the gam function. Included in the
experimental evaluations are zero-dose ("blank") measurements. I want to set
up the gam estimation so that the fitted smooths for the several products
converg
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