why do you use coordinates as predictors how does a quadratic trend change can you include coordinates in a regression which variables should be included in regression can you include independent variables in regression what variables should be included for spatial trend can you use coordinates as a predictor during a regression when is spatial autocorrelation tested when should regression regression models include covariate coordinates? why do you need to include coordinates in a regression why does linear regression include coordinates as covariates which is an example of a logistic regression? when do i consider coordinates as covariates and test residuals which variables should i test if their autocorrelation is quadratic can spatial trend be used by regression how should i interpret a trend in linear regression why not include coordinates as independent variable how to do spatial autocorrelation regression why do i use coordinates as covariates for regression how to test residuals