Lines defined by functional observations are added to an existing plot.
USAGE:
lines.fd(fdobj, Lfdobj=int2Lfd(0), ...)
REQUIRED ARGUMENTS:
fdobj
a univariate functional data object.
OPTIONAL ARGUMENTS:
Lfdobj
either a nonnegative integer or a linear differential operator object.
If present, the derivative or the value of applying the operator is
evaluated rather than the functions themselves.
...
additional arguments such as axis titles and so forth that can be used
in all plotting programs.