edge-cases.md
In Cubist: Rule- And Instance-Based Regression Modeling

cubist handles percent sign in variable names

Code
  mod <- cubist(x, y)
Condition
  Warning in `FUN()`:
  NAs introduced by coercion

cubist errors with Date predictor

Code
  cubist(x, y)
Condition
  Error:
  ! Column 'date_var' has a date/datetime class. Cubist does not support date or datetime predictors. Consider converting to numeric (e.g., days since a reference date) or extracting components (year, month, day) as separate predictors.

cubist errors with POSIXct predictor

Code
  cubist(x, y)
Condition
  Error:
  ! Column 'datetime_var' has a date/datetime class. Cubist does not support date or datetime predictors. Consider converting to numeric (e.g., days since a reference date) or extracting components (year, month, day) as separate predictors.

cubist error message lists all date columns

Code
  cubist(x, y)
Condition
  Error:
  ! Columns 'date1', 'date2' have a date/datetime class. Cubist does not support date or datetime predictors. Consider converting to numeric (e.g., days since a reference date) or extracting components (year, month, day) as separate predictors.