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 0 9 155
Group sequential clinical trial designs for normally distributed outcome variables 0 0 0 11 0 0 12 47
Total Working Papers 0 0 1 40 0 0 21 202


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 0 6 17
Exact group sequential designs for two-arm experiments with Poisson distributed outcome variables 0 0 0 0 0 0 0 3
Group sequential clinical trial designs for normally distributed outcome variables 0 0 0 3 0 0 5 27
Total Journal Articles 0 0 0 6 0 0 11 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 2 62 2 3 15 347
GROUPSEQ: Stata module providing functions to determine group sequential trial designs 0 0 1 38 2 3 12 303
MVTNORM: Stata module to work with the multivariate normal and multivariate t distributions, with and without variable truncation 1 2 2 185 2 3 36 1,599
SINGLEARM: Stata module supporting design and analysis of single-arm clinical trials 0 1 4 34 0 1 22 238
Total Software Items 1 3 9 319 6 10 85 2,487


Statistics updated 2026-09-10