Convert a "profileModel" object to contain the signed square
roots of the profiles.
# S3 method for profileModel
signedSquareRoots(prof)an object of class "profileModel".
a "profileModel" object.
Ioannis Kosmidis <email: ioannis.kosmidis@warwick.ac.uk>
signedSquareRoots takes as input a "profileModel" object
and results to another "profileModel" object that contains the
signed square roots of the profiled differences. The method only
applies if agreement is set to TRUE in prof$call.
plot.profileModel.