fit_mean {elasdics}

Fitting function for open curves

Description

Fits an elastic mean for open curves. Is usually called from compute_elastic_mean.

Usage

fit_mean(srv_data_curves, knots, max_iter, type, eps)

Arguments

srv_data_curves

list of data.frames with srv vectors in each row. Usually a result of a call to get_srv_from_points

knots

set of knots for the mean spline curve

max_iter

maximal number of iterations

type

if "smooth" linear srv-splines are used which results in a differentiable mean curve if "polygon" the mean will be piecewise linear.

eps

the algorithm stops if L2 norm of coefficients changes less

Value

a list with entries

type

"smooth" or "polygon"

coefs

coefs srv spline coefficients of the estimated mean

knots

spline knots

t_optims

optimal parametrization