search for: rifkin

Displaying 6 results from an estimated 6 matches for "rifkin".

2004 Mar 18
1
two lme questions
...two times are Early and Late and the xxx are actual numbers. Why isnt there any line for the Cold treatment and the late time? is it because these necessarily are the opposite of the Hot and Early ones so putting them in would be redundant (i.e. Hot+Cold=0, Early+Late=0)? Thanks much, Scott Rifkin scott.rifkin at yale.edu
2004 Mar 19
1
lme: simulate.lme in R
...R doesn't have the function ms which is apparently used by simulate.lme In the current version of nlme for R, is there a way around this? Is it possible to use the simulate function? Is this going to be rectified in the (eagerly anticipated) new release of nlme next month? Thanks, Scott.rifkin at yale.edu
2004 Feb 07
1
display functions in groupedData and lme
...any purpose later on when specifying the model in the call to lme? If so, how would I include more terms in primary or grouping (I tried primary1+primary2+... as per one post in the archives, but it didn't work). If not, is it just for purposes of displaying the data? Thanks much, Scott Rifkin
2004 Apr 08
0
lme, mixed models, and nuisance parameters
...for whether it is possible to extract the Variety and Variety/Timepont variances and blups and the Timepoint estimates if my measurements are differences rather than individual measurements? If so, how would I go about setting the appropriate model using lme? Thanks much for any help, Scott Rifkin scott.rifkin at yale.edu
2016 Apr 27
2
odd behavior of numeric()
Why does: > numeric(0.2*25) return [1] 0 0 0 0 0 but > numeric((1-0.8)*25) returns [1] 0 0 0 0 [running version 3.2.0] [Apologies if this has been asked before - it's a hard question to find specific search terms for] Thanks, Scott
2006 Dec 28
0
lmer: Interpreting random effects contrasts and model formulation
...popP3 0.8056185 0.897563 0.991 0.983 0.983 popP4 2.5663700 1.601989 0.993 0.985 0.985 0.983 Residual 0.0025374 0.050372 How does this play into the estimates? (I suspect this will become clear when I understand the answer to question d) Thanks much, Scott Rifkin