If a crosstabs on the two factors has any zero counts it might explain. — David
Sent from my iPhone > On Nov 6, 2019, at 5:42 PM, Jim Lemon <[email protected]> wrote: > > Hi Greg, > I tried this: > > cp<-read.table(text="Birey Grup Time y > 1 1 Cp1 0.7916386 > 1 1 Cp3 1.7463777 > 1 1 Cp7 1.2008390 > 1 1 Cp14 0.6311380 > 1 1 Cp21 2.1563557 > 1 1 Cp28 1.2008390", > header=TRUE) > library(prettyR) > xtab(Grup~Time,cp) > Crosstabulation of Grup by Time > Time > Grup Cp1 Cp14 Cp21 Cp28 Cp3 Cp7 > 1 1 1 1 1 1 1 6 > 16.67 16.67 16.67 16.67 16.67 16.67 - > 100 100 100 100 100 100 100 > > 1 1 1 1 1 1 6 > 16.67 16.67 16.67 16.67 16.67 16.67 100.00 > > Maybe doing the same on your entire data set will reveal something. > > Jim > >> On Thu, Nov 7, 2019 at 8:58 AM greg holly <[email protected]> wrote: >> >> I got the following error message after running t2way(y ~ Grup*Time, data >> = cp) >> Error in x[[grp[i]]] : >> attempt to select less than one element in get1index >> >> a part of the data is given below. Your help is highly appreciated. >> >> Greg >> >>> head(cp) >> Birey Grup Time y >> 1 1 1 Cp1 0.7916386 >> 2 1 1 Cp3 1.7463777 >> 3 1 1 Cp7 1.2008390 >> 4 1 1 Cp14 0.6311380 >> 5 1 1 Cp21 2.1563557 >> 6 1 1 Cp28 1.2008390 >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> [email protected] mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > ______________________________________________ > [email protected] mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ [email protected] mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.

