for all scaled environmental covariates, scale them within a stream (i.e. use a group_by before scaling). Otherwise these variables are scaled across the whole watershed, which doesn't make sense because when we are comparing different environmental covariates we do this within streams.
for all
scaled
environmental covariates, scale them within a stream (i.e. use agroup_by
before scaling). Otherwise these variables are scaled across the whole watershed, which doesn't make sense because when we are comparing different environmental covariates we do this within streams.