df_mom_educ <- impute_knn(dat=df, formula = mom_educ ~ x + w, pool = "complete", k = 5, backend = "simputation")
Error in [<-:
! Subscript ina is a matrix, the data donors[ina] must have size 1.
I'm getting the above error when trying to perform K-nearest neighbor imputation for the mom_educ variable. I was wondering if you could explain what this error means, and why I might be getting it? Thank you!
I tried using pool = "univariate" instead of "complete", but got the same error