Arguments
y0fd
a functional data object defining the target for registration.
It must be univariate and it must define a single functional
observation.
yfd
a functional data object defining the functions to be registered to
target yfd0.
WfdParobj
a functional parameter object for a single function. This function
is used as the initial value in the estimation of a function
$W(t)$ that defines the warping function $h(t)$ that
registers a particular curve. The object also contains information
on a r
conv
a criterion for convergence of the iterations.
iterlim
a limit on the number of iterations.
dbglev
either 0, 1, or 2. This controls the amount information printed out on
each iteration, with 0 implying no output, 1 intermediate output level,
and 2 full output. If output is desired, it is helpful to turn off
the output buffering option of S-PLUS.
periodic
a logical variable:
if TRUE, the functions are considered to be
periodic, in which case a constant can be added to all argument
values after they are warped.
crit
an integer that is either 1 or 2 that indicates the nature of the
continuous registration criterion that is used. If 1, the criterion is
least squares, and if 2, the criterion is the minimum eigenvalue of a
cross-product matrix. In general, criterion 2