EventProbabilities {rpact} | R Documentation |

Class for the definition of event probabilities.

`EventProbabilities`

is a class for the definition of event probabilities.

`time`

The time values. Is a numeric vector.

`accrualTime`

The assumed accrual time intervals for the study. Is a numeric vector.

`accrualIntensity`

The absolute accrual intensities. Is a numeric vector of length

`kMax`

.`kappa`

The shape of the Weibull distribution if

`kappa!=1`

. Is a numeric vector of length 1.`piecewiseSurvivalTime`

The time intervals for the piecewise definition of the exponential survival time cumulative distribution function. Is a numeric vector.

`lambda1`

The assumed hazard rate in the treatment group. Is a numeric vector of length

`kMax`

.`lambda2`

The assumed hazard rate in the reference group. Is a numeric vector of length 1.

`allocationRatioPlanned`

The planned allocation ratio (

`n1 / n2`

) for the groups. For multi-arm designs, it is the allocation ratio relating the active arm(s) to the control. Is a positive numeric vector of length 1.`hazardRatio`

The hazard ratios under consideration. Is a numeric vector of length

`kMax`

.`dropoutRate1`

The assumed drop-out rate in the treatment group. Is a numeric vector of length 1 containing a value between 0 and 1.

`dropoutRate2`

The assumed drop-out rate in the control group. Is a numeric vector of length 1 containing a value between 0 and 1.

`dropoutTime`

The assumed time for drop-out rates in the control and treatment group. Is a numeric vector of length 1.

`maxNumberOfSubjects`

The maximum number of subjects for power calculations. Is a numeric vector.

`overallEventProbabilities`

Deprecated field which will be removed in one of the next releases. Use

`cumulativeEventProbabilities`

instead.`cumulativeEventProbabilities`

The cumulative event probabilities in survival designs. Is a numeric vector.

`eventProbabilities1`

The event probabilities in treatment group 1. Is a numeric vector.

`eventProbabilities2`

The event probabilities in treatment group 2. Is a numeric vector.

[Package *rpact* version 4.0.0 Index]