RE: SAS program or SAS macro to prepare NonMem ready data

From: "Wang, Yaning" WangYA@cder.fda.gov Subject: RE: [NMusers] SAS program or SAS macro to prepare NonMem ready data Date: Wed, December 8, 2004 1:34 pm First of all, I want to clarify that all my posts here only reflect my personal opinion. As far as I know, there is no regulatory preference for any commercial software for data manipulation. On the other hand, it is a good practice to use softwares that can keep track of all the data manipulation steps so that we can easily reproduce the results or make further changes. SAS may be the most popular software for data manipulation here in FDA since all the data files are submitted as SAS transport files. But some of my colleagues use S+ because they are more familiar with S+. Also some of my colleagues use a program called JMP. Leonid: My earlier comment on S+ sort function was based on my experience with S+ two years ago on S+2000 (bound with TS2). I was trying to sort a large simulated data frame based on two columns (ID TIME). It was much slower compared with SAS at that time. Maybe I was not using the most efficient command or S+ 6.1 improves this function. Anyway, I am more comfortable with SAS.