Description Usage Arguments Details Examples

It constructs a PP-plot which compares the transition probabilities reported by the non-Markovian and Aalen-Johansen estimators. Under the Markov assumption the PP-plot should fit the straight line y=x. When the Markov assumption holds the Aalen-Johansen is preferred since it provides a smaller standard error. If the Markov assumption is violated, the Aalen-Johansen may be inconsistent and therefore the non-Markovian method is recommended.

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`data` |
A data.frame including at least four columns named |

`s` |
The current time for the transition probabilities to be computed. |

`t` |
The future time for the transition probabilities to be computed. Default is “last” which means the largest time among the uncensored entry times for the intermediate state and the final absorbing state. |

It constructs a PP-plot which compares the transition probabilities reported by the non-Markovian and Aalen-Johansen estimators. Under the Markov assumption the PP-plot should fit the straight line y=x. When the Markov assumption holds the Aalen-Johansen is preferred since it provides a smaller standard error. If the Markov assumption is violated, the Aalen-Johansen may be inconsistent and therefore the non-Markovian method is recommended. The PP-plot excludes *P_{11}*(s,t) since both estimators agree in this case. Also, the user-supplied `s`

must be strictly positive, because the Markov assumption is not relevant for the estimation of occupation probabilities (s=0).

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