ErrorSpend | R Documentation |
rho-family spending functions (Kim-DeMets) for alpha and beta
ErrorSpend(I, rho, beta_or_alpha, Info.max)
I |
Information at analysis to be evaluated |
rho |
parameter for the spending function |
beta_or_alpha |
total alpha or beta to be spent |
Info.max |
Maximum information needed at end of trial |
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