Wrapper function for the hypothesis in the trial.
hypothesis( delta = 0, futility_prob = 0.05, prob_accept_ha = 0.95, expected_success_prob = 0.9, alternative = "greater", .data = NULL )
| delta | numeric. Threshold set for margin in null hypothesis. The default is set to 0. |
|---|---|
| futility_prob | numeric. Probability of futility. The default is 0.05. |
| prob_accept_ha | numeric. Posterior probability of accepting alternative hypothesis. The default is 0.95. |
| expected_success_prob | numeric. Probability of expected success. |
| alternative | character. The string specifying the alternative
hypothesis, must be one of |
| .data | NULL. This should not be changed by the user. |
A list with information of hypothesis testing (threshold, futility probability, probability of accepting the alternative hypothesis, and probability of expected success).
hypothesis(delta = 0, futility_prob = 0.05, prob_accept_ha = 0.95, expected_success_prob = 0.90, alternative = "greater")#> $h0 #> [1] 0 #> #> $futility_prob #> [1] 0.05 #> #> $prob_ha #> [1] 0.95 #> #> $expected_success_prob #> [1] 0.9 #> #> $alternative #> [1] "greater" #>hypothesis(delta = 0.2, futility_prob = 0.1, prob_accept_ha = 0.975, expected_success_prob = 0.80, alternative = "less")#> $h0 #> [1] 0.2 #> #> $futility_prob #> [1] 0.1 #> #> $prob_ha #> [1] 0.975 #> #> $expected_success_prob #> [1] 0.8 #> #> $alternative #> [1] "less" #>