search for: x2x2

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2002 May 17
0
options()$warn==2 and try()
...t computes several other covariates from x1 and x2: FitModels <- function(vnames,dframe,survname,censname,censval="Progressed"){ ## Get covariate x1 from data frame: x1x1 <- eval(parse(text=paste(dframe,vnames[1],sep="$"))) ## Get covariate x2 from data frame: x2x2 <- eval(parse(text=paste(dframe,vnames[2],sep="$"))) ## Get survival time: response <- eval(parse(text=paste(dframe,survname,sep="$"))) ## Get censoring variable: censred <- eval(parse(text=paste(dframe,censname,sep="$"))) censred <- as.numeri...
2007 Mar 07
1
No fit statistics for some models using sem
...effect of FARSCH and LOCUS10 on RMTEST. The RAM specification I used is FARSCH -> T_ATTENT, y1x1, NA LOCUS10 -> T_ATTENT, y1x2, NA FARSCH -> RMTEST10, y2x1, NA LOCUS10 -> RMTEST10, y2x2, NA T_ATTENT -> RMTEST10, y2y1, NA FARSCH <-> FARSCH, x1x1, NA LOCUS10 <-> LOCUS10, x2x2, NA T_ATTENT <-> T_ATTENT, y1y1, NA RMTEST10 <-> RMTEST10, y2y2, NA LOCUS10 <-> FARSCH, x2x1, NA This model runs, but using the summary function does not return the usual model fit statistics, only the following: Model Chisquare = 0 Df = 0 Pr(>Chisq) = NA Chisquare (n...