Why don't try as.formula() function On 22.06.2011 01:22, Rita Carreira wrote:
Dear List Members,I am trying to set up a large system of equations and I am trying to find a simple way to set up the list command under the package system fit. Here is the example from system fit and what I am trying to do: EQ1<- Y1 ~ X1 + X2 + X4EQ2<- Y2 ~ X2 + X3EQ3<- Y3 ~ X2 + X3 + X4EQ4<- Y4 ~ X1 + X3 + X4eqSystem<-list(form1 = EQ1, form2 = EQ2, form3 = EQ3, form4 = EQ4) #atempt 1 to "automate" above:eqSystem1<-paste(paste("form", 1:4, sep=""), paste("EQ", 1:4,sep=""),sep="=") #attempt 2 "automate" above:eqSystem2<-as.list(paste(paste("form", 1:4, sep=""), paste("EQ", 1:4,sep=""),sep="="))Here are the results: The results that I want to get:> eqSystem1$form1Y1 ~ X1 + X2 + X4 $form2Y2 ~ X2 + X3 $form3Y3 ~ X2 + X3 + X4 $form4Y4 ~ X1 + X3 + X4 The results of my attempts:attempt 1:> eqSystem1 [1] "form1=EQ1" "form2=EQ2" "form3=EQ3" "form4=EQ4" attempt 2:> eqSystem2[[1]] [1] "form1=EQ1" [[2]] [1] "form2=EQ2" [[3]] [1] "form3=EQ3" [[4]] [1] "form4=EQ4" Does anyone have any ideas on how to correct my code? Thanks, Rita ===================================== "If you think education is expensive, try ignorance."--Derek Bok [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list 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.
______________________________________________ R-help@r-project.org mailing list 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.
