Hi， I conducted a multiple imputation based on the tutorial of Virginia University. https://data.library.virginia.edu/getting-started-with-multiple-imputation-in-r/
However, the error report is:
imp2 <- mice(merge2, maxit = 5, predictorMatrix = predM, method = meth, print=TRUE) Error in edit.setup(data, setup, ...) : `mice` detected constant and/or collinear variables. No predictors were left after their removal.
When I establish print=TRUE，it does not show when the algorithm stops because of multicollinearity. How can I do trouble shoot?
Thank you very much!