sampsize - sample size and power / News: Recent posts

A fast command line program to compute power and sample size of surveys, comparative studies including non-inferiority (equivalence) trials and case-control studies.

Sampsize is a fast command line tool written in C to compute sample size and power.

Features include finite population correction, exact methods to compute the sample size required to observe a minimum number of events, sample size and power for one-sample and two-sample comparative studies of means and percentages, correction for cluster sampling designs, sample size and power of unmatched and 1:1 matched case-control studies, minimum and maximum detectable odds-ratio of case-control studies. ... read more

Sampsize computes sample size and power.

Sampsize computes sample size for prevalence surveys with finite population correction, sample size to detect a minimum number of events, sample size and power for one-sample and two-sample comparison of percentages and means, sample size for unmatched case-control studies.

This is a fast command line programme. The package includes a cgi file for a user friendly access to the programme from provided html forms. Sampsize is written in C and depends only on libc. All computations are in double precision. A certification script is included. ... read more