LRfit.object: Estimated while-alive loss rates
In WA: While-Alive Loss Rate for Recurrent Event in the Presence of Death

This class of objects is returned by the LRfit functions. Objects of this class have methods for the functions print, summary, and plot.

All numerical results of an object obj are contained in obj$content, which is organized in a two-dimensional array with each column containing the results for one group. Below are the row variables.

`t`	A vector of follow-up times τ.
`llr`	A vector of log-loss rate estimates at `t`.
`se_llr`	A vector of standard error estimates for the log-loss rates in `llr`.
`lmuR`	A vector of log-raw cumulative loss estimates at `t`.
`se_lmuR`	A vector of standard error estimates for the log-raw cumulative losses in `lmuR`.
`lmuD`	A vector of log-RMST estimates at `t`.
`se_lmuD`	A vector of standard error estimates for the log-RMST in `lmuD`.
`St`	A vector of overall survival probabilities at `t`.
`...`