interpprev
(Package: lgtdl) :
Interpolation Using the Previous Value
These functions provide an interpolation mechanism for objects of class lgtdl. The AsIs method is the vectorized version.
● Data Source:
CranContrib
● Keywords: smooth
● Alias: interpprev, interpprev.AsIs, interpprev.lgtdl
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interplinear
(Package: lgtdl) :
A function to provide estimates of the response for a
A linear interpolation, using approx, is used to obtain estimates of the covariate at times other than those observed.
● Data Source:
CranContrib
● Keywords: smooth
● Alias: interplinear, interplinear.AsIs, interplinear.lgtdl
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lgtdl
(Package: lgtdl) :
Longitudinal Class
The lgtdl class is a simple class of R/S objects that make it simpler to manipulate longitudinal data.
● Data Source:
CranContrib
● Keywords: methods
● Alias: lgtdl
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toString.lgtdl
(Package: lgtdl) :
Produce a character string suitable for printing.
Data frames can contain lgtdl objects as elements. When the data frame is printed this function provides a suitable string for printing.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: toString.lgtdl
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plot.lgtdl
(Package: lgtdl) :
A function for plotting lgtdl objects.
A lgtdly object consists of a time component and one or more covariates measured or observed at the times specified in the time component. This function plots the covariate trajectories as lines on the y axis.
● Data Source:
CranContrib
● Keywords: hplot
● Alias: plot.lgtdl
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getcov
(Package: lgtdl) :
A function to extract the covariate from an object of class
The covariate component of the lgtdl object is returned.
● Data Source:
CranContrib
● Keywords: utilities
● Alias: getcov, getcov.lgtdl
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as.lgtdl
(Package: lgtdl) :
Longitudinal Class
as.lgtdl coerces its argument to class lgtdl if possible. is.lgtdl returns TRUE if its argument is of class lgtdl and FALSE otherwise.
● Data Source:
CranContrib
● Keywords: manip
● Alias: as.lgtdl, is.lgtdl
●
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