topic Re: Help - 4 parameter logistic for Bioassay in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Help-4-parameter-logistic-for-Bioassay/m-p/115383#M6054 <HTML><HEAD></HEAD><BODY><P>That is not an easy answer that can be dropped in this space.&nbsp; I have attached some code that does a five parameter logistic regression for a cell based bioassay that might be adaptable, but beware, it is not documented, it does get convoluted, and it was written for v9.1.3.</P><P></P><P>I hope this will help.</P><P></P><P>Steve Denham</P></BODY></HTML> Thu, 17 May 2012 19:54:34 GMT SteveDenham 2012-05-17T19:54:34Z Help - 4 parameter logistic for Bioassay https://communities.sas.com/t5/Statistical-Procedures/Help-4-parameter-logistic-for-Bioassay/m-p/115382#M6053 <HTML><HEAD></HEAD><BODY><P>How can i do the 4 parameter logistic curve analysis for Bioassay as the ex. 5.4.1 in the chapter 5.3 of the Eu.Pharmacopoeia?</P></BODY></HTML> Tue, 15 May 2012 13:08:09 GMT https://communities.sas.com/t5/Statistical-Procedures/Help-4-parameter-logistic-for-Bioassay/m-p/115382#M6053 COMPAREMISSING 2012-05-15T13:08:09Z Re: Help - 4 parameter logistic for Bioassay https://communities.sas.com/t5/Statistical-Procedures/Help-4-parameter-logistic-for-Bioassay/m-p/115383#M6054 <HTML><HEAD></HEAD><BODY><P>That is not an easy answer that can be dropped in this space.&nbsp; I have attached some code that does a five parameter logistic regression for a cell based bioassay that might be adaptable, but beware, it is not documented, it does get convoluted, and it was written for v9.1.3.</P><P></P><P>I hope this will help.</P><P></P><P>Steve Denham</P></BODY></HTML> Thu, 17 May 2012 19:54:34 GMT https://communities.sas.com/t5/Statistical-Procedures/Help-4-parameter-logistic-for-Bioassay/m-p/115383#M6054 SteveDenham 2012-05-17T19:54:34Z