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...response variable' ~ 'primary covariate' | 'grouping factor'. In experiments creating response surfaces there are 2 or more primary covariates. Is there any way to use the groupedData() function to include 2 primary covariates? Thanks -- Nathan Leon Pace, MD, MStat Work:nlpace at bigpace.med.utah.ed Department of Anesthesiology Play:nlpaces at attbi.com University of Utah Voice Work:801.581.6393 Play:801.467.2925 Salt Lake City, Utah Fax Work:801.581.4367 Play:801.467.0555 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...ge 'MASS' gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113) is installed. I have checked the R archives and FAQ and admin manual for help. My knowledge of c compiling is limited. Any pointers for debugging this problem would be appreciated. Nathan Nathan Leon Pace, MD, MStat Work:nlpace at bigpace.med.utah.edu Department of Anesthesiology Home:nlpaces at comcast.net University of Utah Work:801.581.6393 Salt Lake City, Utah Home:801.467.2925 Fax:801.581.4367 Cell:801.558.3987

...t motivate my department to use a different vendor of Linux. Is there anything predictable about which vendors/versions of Linux will have R binaries in the future? Thanks, Nathan PS I looked at CRAN and didn't immediately find any info about the future. Nathan Leon Pace, MD, MStat Work:nlpace at bigpace.med.utah.edu Department of Anesthesiology Home:nlpaces at comcast.net University of Utah Work:801.581.6393 Salt Lake City, Utah Home:801.467.2925 Fax:801.581.4367 Cell:801.558.3987

...object won't accept NAs. My problem is writing code to impute a numeric value for the missing estimate. ifelse won't generate a numeric value if the test is mode logical. Any suggestions? Nathan Nathan Leon Pace, MD, MStat Work:n.l.pace at utah.edu Department of Anesthesiology Home:nlpaces at comcast.net University of Utah Work:801.581.6393 Salt Lake City, Utah Home:801.467.2925 Fax:801.581.4367 Cell:801.558.3987

...tor of results to another function. Even after looking at V&R S Programming I don't see a general approach. Specifically, how would I extract just the contingency table from ftable. Thanks, Nathan Nathan Leon Pace, MD, MStat Work:n.l.pace at utah.edu Department of Anesthesiology Home:nlpaces at comcast.net University of Utah Work:801.581.6393 Salt Lake City, Utah Home:801.467.2925 Fax:801.581.4367 Cell:801.558.3987

...values cannot be found from a parametric bootstrap > > To knowledge I should be able to get bca CIs on a parametric bootstrap > object. > > Any suggestions? > > Nathan > > > Nathan Leon Pace, MD, MStat Work:n.l.pace at utah.edu > Department of Anesthesiology Home:nlpaces at comcast.net > University of Utah Work:801.581.6393 > Salt Lake City, Utah Home:801.467.2925 > Fax:801.581.4367 Cell:801.558.3987