priormeanobs {growthrate}

prior mean

Description

Internal function. Finds the sample mean of the n-vector y for use in specifying the prior mean {\boldsymbol\mu}_0; see Section 2 of the referenced article for further details.

Usage

	priormeanobs(YI, tobs)

Arguments

YI

The N times (n-1) matrix with rows being the values of y_i, i=1\ldots, n-1 for the N subjects

tobs

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