| as.lgtdl | Longitudinal Class | 
| getcov | A function to extract the covariate from an object of class lgtdl. | 
| getcov.lgtdl | A function to extract the covariate from an object of class lgtdl. | 
| interplinear | A function to provide estimates of the response for a longitudinal data object. The estimate is obtained by linear interpolation from the preceding and following observations. | 
| interplinear.AsIs | A function to provide estimates of the response for a longitudinal data object. The estimate is obtained by linear interpolation from the preceding and following observations. | 
| interplinear.lgtdl | A function to provide estimates of the response for a longitudinal data object. The estimate is obtained by linear interpolation from the preceding and following observations. | 
| interpprev | Interpolation Using the Previous Value | 
| interpprev.AsIs | Interpolation Using the Previous Value | 
| interpprev.lgtdl | Interpolation Using the Previous Value | 
| is.lgtdl | Longitudinal Class | 
| lgtdl | Longitudinal Class | 
| plot.lgtdl | A function for plotting lgtdl objects. | 
| toString.lgtdl | Produce a character string suitable for printing. |