Imports includes 31 non-default packages.
Importing from so many packages makes the package vulnerable to any of
them becoming unavailable.  Move as many as possible to Suggests and
use conditionally.
Found the following Rd file(s) with Rd \link{} targets missing package
anchors:
  engr_survey_batch.Rd: sf
  maxmre.Rd: rmse
  mre.Rd: rmse
Please provide package anchors for all Rd \link{} targets not in the
package itself and the base packages.