search for: nonadherence

Displaying 2 results from an estimated 2 matches for "nonadherence".

R Package: ssanv - Sample size adjustments for nonadherence and variability of input parameters
2007 Jun 06
0
R Package: ssanv - Sample size adjustments for nonadherence and variability of input parameters
Hi, This is a late announcement for a package that has been up on CRAN since Feb 2006. The package is called ssanv and it calculates sample sizes for two group tests with adjustments for nonadherence and variability of the input parameters. As an example, suppose you want a sample size for a two group difference in normal means but you get your estimate of your variance from a previous study. Then with this package, you can account for the variability of that variance estimate in your sample si...
R Package: ssanv - Sample size adjustments for nonadherence and variability of input parameters
2007 Jun 06
0
R Package: ssanv - Sample size adjustments for nonadherence and variability of input parameters
Hi, This is a late announcement for a package that has been up on CRAN since Feb 2006. The package is called ssanv and it calculates sample sizes for two group tests with adjustments for nonadherence and variability of the input parameters. As an example, suppose you want a sample size for a two group difference in normal means but you get your estimate of your variance from a previous study. Then with this package, you can account for the variability of that variance estimate in your sample si...