saemix (version 3.3)

xbinning: Internal functions used to produce prediction intervals (from the npde package)

Description

Functions used by plot functions to define the boundaries of the bins on the X-axis

Usage

xbinning(xvec, plot.opt, verbose = FALSE)

Value

a list with 3 elements, xgrp (the number of the bin associated with each element of xvec), xcent (a named vector containing the mean of the elements of xvec contained in each bin; the name of the bin is the interval), and xgroup (a vector with the group associated to each element of xvec after binning) If verbose is TRUE, a table showing the bins is shown, giving the interval of xvec associated with each bin, the mean value of xvec in each bin, and the number of observations

Arguments

xvec

a vector of values for the X-axis of the plot

plot.opt

graphical options

verbose

boolean (defaults to FALSE). If TRUE, a table showing how the binning was performed

Author

Emmanuelle Comets

Details

These functions are normally not called by the end-user.

References

K. Brendel, E. Comets, C. Laffont, C. Laveille, and F. Mentre. Metrics for external model evaluation with an application to the population pharmacokinetics of gliclazide. Pharmaceutical Research, 23:2036--49, 2006.

See Also

npde, autonpde