Khatf: posterior covariance kernel

Description Usage Arguments

Description

Internal function. Finds the posterior covariance kernel on the fine grid tgrid (same for every subject); see Section 2 of the referenced article for further details.

Usage

1
	Khatf(tgrid, tobs, sigma, Sigmahat)

Arguments

tgrid

The fine grid of d equispaced-time points (between the first and last observation times in tobs) at which the posterior means and covariances are computed.

tobs

Row vector of n observation times (in increasing order, same for each subject).

sigma

Infinitessimal standard deviation of the tied-down Brownian motion in the prior.

Sigmahat

Posterior covariance at the observation times tobs (same for every subject).



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