Access Statistics for Michael John Grayling

Author contact details at EconPapers.

Working Paper File Downloads Abstract Views
Last month 3 months 12 months Total Last month 3 months 12 months Total
Efficient multivariate-normal distribution calculations in Stata 0 0 1 29 0 4 9 155
Group sequential clinical trial designs for normally distributed outcome variables 0 0 1 11 0 1 14 47
Total Working Papers 0 0 2 40 0 5 23 202


Journal Article File Downloads Abstract Views
Last month 3 months 12 months Total Last month 3 months 12 months Total
Calculations involving the multivariate normal and multivariate t distributions with and without truncation 0 0 0 3 0 3 6 17
Exact group sequential designs for two-arm experiments with Poisson distributed outcome variables 0 0 0 0 0 0 1 3
Group sequential clinical trial designs for normally distributed outcome variables 0 0 0 3 0 1 7 27
Total Journal Articles 0 0 0 6 0 4 14 47


Software Item File Downloads Abstract Views
Last month 3 months 12 months Total Last month 3 months 12 months Total
DESMA: Stata module to design and simulate (adaptive) multi-arm clinical trials 0 0 3 62 0 0 23 344
GROUPSEQ: Stata module providing functions to determine group sequential trial designs 0 1 3 38 0 3 13 300
MVTNORM: Stata module to work with the multivariate normal and multivariate t distributions, with and without variable truncation 0 0 0 183 2 8 40 1,596
SINGLEARM: Stata module supporting design and analysis of single-arm clinical trials 0 1 3 33 2 7 27 237
Total Software Items 0 2 9 316 4 18 103 2,477


Statistics updated 2026-06-04