Sequential Design CDF [Power / Sample Size]
Dear ElMaestro,
Thank you for your input! Since I'm still a long way from learning R coding, I was able to find the correct Excel function Ft(x,DF) from an add-in from EasyfitXL, which is the =StudentCdf. With this I was finally able to replicate Potvin's Example#2 Method B. Optimal n was achieved by tabulating 20 incrementing n's, and using a lookup function to find the lowest >80% power. I admit this method is crude, but for our current purpose, it will probably do.
Best regards,
Abel.
Thank you for your input! Since I'm still a long way from learning R coding, I was able to find the correct Excel function Ft(x,DF) from an add-in from EasyfitXL, which is the =StudentCdf. With this I was finally able to replicate Potvin's Example#2 Method B. Optimal n was achieved by tabulating 20 incrementing n's, and using a lookup function to find the lowest >80% power. I admit this method is crude, but for our current purpose, it will probably do.
Best regards,
Abel.
Complete thread:
- Sequential Design CDF APFlores 2014-06-23 08:14
- Avoid Excel! Helmut 2014-06-23 14:08
- Avoid Excel! APFlores 2014-06-24 04:40
- Sequential Design CDF ElMaestro 2014-06-24 09:59
- Sequential Design CDFAPFlores 2014-06-25 03:03
- R is not that complicated… Helmut 2014-06-25 13:58
- R is not that complicated… APFlores 2014-06-26 08:38
- no need Winzip to install any R package yjlee168 2014-06-26 10:36
- no need Winzip to install any R package APFlores 2014-06-27 08:58
- no need Winzip to install any R package yjlee168 2014-06-26 10:36
- R is not that complicated… APFlores 2014-06-26 08:38
- R is not that complicated… Helmut 2014-06-25 13:58
- Sequential Design CDFAPFlores 2014-06-25 03:03
- Avoid Excel! Helmut 2014-06-23 14:08
