[R] Multi response GAM

Tristan Kosciuch tr|@t@n@ko@c|uch @end|ng |rom m@||@mcg|||@c@
Sat Apr 18 00:45:33 CEST 2020


I am modelling the diet of Nile perch through time. I have 3 diet classes as
my response variables; fish 1, fish 2, and invertebrates.

The response variables are correlated, declines in invert consumption ~
increase in fish consumption. Any advice on how to handle this would be
appreciated. I would like to use GAMs as my time series shows fluctuations
that could only be fit by high order polynomials if I were to use a linear
model, but open to suggestions.

Thank you for your time.

P.s. I will be comparing the fit of the time series GAM with a model based
on other predictors, with a training and validation split for my data.


Tristan Kosciuch

Stewart Biology Building, McGill University

1205 Dr Penfield Ave, Montreal QC H3A 1B1

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