v2.2.2 (Sky)

New features

• The argument spike in the mbl() function now accepts negative integers to
  avoid observations in the neighbrhoods.

Fixes

• A sanity check was added to cor_diss(). Correlation coefficients for
  observations with an standard deviation of 0 cannot be computed (#38).

• The pls_projection() did not work for more than one
  response variable and with the methods 'cumvar' or 'var' for the selection
  of the components. This has been fixed (#37).