# PH data set

### Description

This data set was generates from sequentially randomized clinical trials as described in the simulation study of Tang and Wahed (2011). It contains the following variables: "X" is the first-stage indicator, X=0 if assigned to A1, and X=1 if assigned to A2; "TR" is the time to response for responders (R=1); "R" is the response status, R=1 for responders, and R=0 for non-responders; "Z" is the second-stage indicator among responders (R=1), Z=0 if assigned to B1, and Z=1 if assigned to B2; "U" is the observed survival time, U is death time if delta=1, and U is censoring time if delta=0; "delta" is the censoring indicator, delta=1 for event, and delta=0 for censored; and "V" is the covariate.

### Usage

1 |

### Format

A data frame with rows corresponding to patients.

### Source

Generated by Xinyu Tang in R

### References

Tang X, Wahed AS: Comparison of treatment regimes with adjustment for auxiliary variables. Journal of Applied Statistics 38(12):2925-2938, 2011

### Examples

1 2 3 | ```
## Not run:
data("PHdata")
## End(Not run)
``` |

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