Description Usage Arguments Details
View source: R/support_functions.R
Calculate the times subjects enter the study
1 | get_recruittimes(accrual_period, n, accrual_exponent)
|
accrual_period |
numeric; duration of accrual period. Must be positive. |
n |
numeric; number of subjects recruited at end of accrual period. |
accrual_exponent |
numeric; exponent in sample size function f(t). |
Number of subjects in the study at study time t is given by f(t)=a * t^b with a = n / accrual_period. For linear recruitment, b=1. b > 1 results is slower than linear recruitment for t < accrual_period and faster than linear recruitment for t > accrual_period. b < 1 vice versa.
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