Hi,
I would like to compare 2 lists resulted from a sql query! bu there are
different levels, so when I want to do:
release1<-sqlQuery(channel,paste("select distinct c.ID,c.Title TitleCrit from
category cat, category_criteria cc, criteria c, question_criteria qc, question
q, form_question fq, form f, release_form rf, release r, product_release pr,
product p where cat.ID=cc.category and cc.criteria=c.ID and c.ID=qc.criteria
and qc.question=q.ID and fq.question=q.ID and fq.form=f.ID and f.ID=rf.form and
rf.release=r.ID and r.ID=pr.release and pr.product=p.ID and
r.ID='",param1,"';",sep=""))
release2<-sqlQuery(channel,paste("select distinct c.ID,c.Title TitleCrit from
category cat, category_criteria cc, criteria c, question_criteria qc, question
q, form_question fq, form f, release_form rf, release r, product_release pr,
product p where cat.ID=cc.category and cc.criteria=c.ID and c.ID=qc.criteria
and qc.question=q.ID and fq.question=q.ID and fq.form=f.ID and f.ID=rf.form and
rf.release=r.ID and r.ID=pr.release and pr.product=p.ID and
r.ID='",param2,"';",sep=""))
data_NA<-matrix(data=0,nrow=length(release$Title),ncol=length(formv$TitleCrit),byrow=TRUE,
dimnames=list(as.factor(release$Title),paste(as.factor(formv$TitleCrit),"(",formv$first_letter,")",sep="")))
for (i in 1:length(formv$TitleCrit))
{
for(k in 1: length(release1$TitleCrit))
{
if(formv$TitleCrit[i]==release1$TitleCrit[k])
{
data_NA[1,formv$TitleCrit[[i]]]<-1
}
else{data_NA[1,formv$TitleCrit[[i]]]<-NA}
}
}
for (i in 1:length(formv$TitleCrit))
{
for(k in 1: length(release2$TitleCrit))
{
if(formv$TitleCrit[i]==release2$TitleCrit[k])
{
data_NA[2,formv$TitleCrit[[i]]]<-1
}
else{data_NA[2,formv$TitleCrit[[i]]]<-NA}
}
}
On R: Error in Ops.factor(formv$TitleCrit[i], release2$TitleCrit[k]) : level
sets of factors are different
How can I compare these 2 lists?
Thanks
SABINE
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