Print a Sample Size Calculation

Usage

# S3 method for class 'bbssr_samplesize'
print(x, digits = 4, ...)

Arguments

x: An object of class bbssr_samplesize returned by BinarySampleSize
digits: Number of significant digits used for the power
...: Further arguments, currently ignored

Value

The object x, returned invisibly

Examples

ss <- BinarySampleSize(p1 = 0.4, p2 = 0.2, r = 1, alpha = 0.025,
                       tar.power = 0.8, Test = 'Chisq')
print(ss)
#> Sample size for a two-arm trial with a binary endpoint
#> 
#>   Test             : Chisq
#>   Alternative      : greater
#>   Response rates   : p1 = 0.4, p2 = 0.2
#>   Allocation ratio : 1 to 1
#>   Alpha            : 0.025
#>   Target power     : 0.8
#>   Exact search     : crossing
#> 
#>   Required sample size: N1 = 80, N2 = 80, total N = 160
#>   Attained power      : 0.8009