data_timevar: A simulated dataset with time-varying longitudinal outcome...

Description Usage Format References Examples

Description

A simulated dataset with time-varying longitudinal outcome, time-to-event, and time-varying covariates. The dataset is already converted into left-truncated right-censored (LTRC) format, so that the Cox model with time-varying longitudinal outcome as a covariate can be fit. See, for example, Fu and Simonoff (2017).

Usage

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Format

A data frame with 866 rows and 11 variables. The variables are as follows:

ID

subject identifier (1 - 500)

X1

continuous covariate between 0 and 1; time-varying

X2

continuous covariate between 0 and 1; time-varying

X3

binary covariate; time-varying

X4

continuous covariate between 0 and 1; time-varying

X5

categorical covariate taking values from 1, 2, 3, 4, 5; time-varying

time_L

left-truncated time

time_Y

right-censored time

delta

censoring indicator, 1 if censored and 0 otherwise

y

longitudinal outcome; time-varying

g

true latent class identifier 1, 2, 3, 4, which is determined by the outcomes of 1\{X1 > 0.5\} and 1\{X2 > 0.5\}, with some noise

References

Fu, W. and Simonoff, J. S. (2017). Survival trees for left-truncated and right-censored data, with application to time-varying covariate data. Biostatistics, 18(2), 352-369.

Examples

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# The data for the first five subjects (ID = 1 - 5):
#
#  ID   X1   X2 X3  X4 X5     time_L   time_Y delta          y g
#   1 0.27 0.53  0 0.0  4 0.09251632 1.536030     0 -0.2191137 1
#   1 0.49 0.71  1 0.0  5 1.53603028 4.366769     1  0.6429496 2
#   2 0.37 0.68  1 0.4  4 0.44674406 1.203560     0  0.5473454 2
#   2 0.65 0.67  0 0.2  5 1.20355968 1.330767     1  1.5515773 4
#   3 0.57 0.38  0 0.2  4 0.82944637 1.267248     0  1.1410397 3
#   3 0.79 0.19  1 0.4  4 1.26724819 5.749602     1  1.0888787 3
#   4 0.91 0.95  0 0.9  1 0.81237396 1.807741     1  2.2105303 4
#   5 0.20 0.12  1 0.3  5 0.80510669 1.029981     0 -0.1167814 1
#   5 0.02 0.31  0 0.4  5 1.02998145 6.404183     1 -0.1747389 1

jlctree documentation built on May 2, 2019, 1:07 p.m.