Hi List,
I have the following problem: I am using the multilevel package and make.univ
function for available in the package and then xyplot from lattice and I want
to know how could I be able to use the “coefficient” for the straight line that
passes the data ?
Example from help:
library(multilevel)
data(univbct) #a data set already in univariate or stacked form for job
satisfaction
TEMP<-univbct[3*1:495,c(22,1:17)] #converting it back to multivariate form
TEMP2<-make.univ(x=TEMP,dvs=TEMP[,c(10,13,16)]) #transforming it to univariate
form again
xyplot(MULTDV~TIME|as.factor(SUBNUM),data=TEMP2,type=c("p","r","g"),col="blue",col.line="black",xlab="Time",ylab="SAT")
# taken from Bliese Paul – Multilevel Modeling in R
Now I want to be able to identify those SUBNUM that have a downwards trend like
(for eg SUBNUM 7) without picking them by inspecting the plot. Is there some
way how I could access these coefficients for this apparently regression line?
Thank you very much and have a great day ahead!
Eugen Pircalabelu
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