L1splineSD: L1 spline (unknown dynamic variance).
In helenecharlotte/rSplines: Robust splines

Function to compute an L1 spline, by use of the continuation method. Fitting variance, allowing for dynamical change.

1 2	L1splineSD(x, t, y, gfun, t0 = Inf, div = 10, lambda = 1e-04, niter = 200, stopiter = 1e-10, ...)

`x`	Numeric value(s) to evaluate the spline in.
`t`	Numeric vector of measurement times.
`y`	Numeric vector of values to be fitted.
`gfun`	Choice of Greens function (choose from G1-G10).
`t0`	Anchor points for changing kappa. Per default set a division of [0,1] based on the number of observations.
`div`	Integer determining where to put boundary knots.
`lambda`	Smoothness parameter.
`niter`	Number of iterations.
`stopiter`	Stopping criterion.
`sigma`	Variance, per default set to srqt(2). Effect translated into lambda.