Questions tagged [concurvity]

Concurvity refers to the nonlinear dependencies among covariates in an additive model, and is related to the concept of collinearity among predictors in a linear model. This tag should be used when a question is related to (multi)collinearity in the predictors of a model where the model contains smooth functions of covariates such as generalized additive models.

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Variance components of a penalized spatial GAM have very large confidence intervals

I am working through a spatial GAM example in one of Simon Wood's lectures (found here), and ran into some problems surrounding concurvity and penalization. I've read a number of other posts on ...
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concurvity in presence of random smooths [closed]

I am trying to fit a GAMM containing per subject random smooths using the bam function in mgcv as follows: ...
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1answer
373 views

concurvity in negative binomial GAM

I'm using the concurvity function to check for concurvity in my model - a negative binomial GAM using the mgcv package in R. The output I get when comparing to the rest of the model (ie full=TRUE) ...