SEM model run error
Thanks Timothy, took on board your points and also adjusted/added a couple more variables. Reading okay. Will post on generic r forum in future. Will check out the tutorials file also.
On 26 Jan 2013, at 17:30, Timothy Bates <tim.bates at ed.ac.uk> wrote:
1 This is not a mac question 2 You haven?t said what package you?re using 3. It is highly unlikely that the correct format is rtf. The main SEM packages in R are OpenMx, SEM, and lavaan. They all have tutorial pdfs, and examples of working models On 26 Jan 2013, at 4:09 PM, Ross Tinsley <rtinsley at htmi.ch> wrote:
Trying to run the following model:
cfa1.model <- specifyModel("~/Documents/Teaching/QMU, Edinburgh/Events/Beltane Fire Festival/quants/Audience motivation survey/SEM/Data/Very first pass at SEM.rtf")
file contents:
Q7.Knowledge.of.Beltane -> Number.of.Attendances1, beta, NA
Age.band -> Q7.Knowledge.of.Beltane, alpha1, NA
Gender -> Q7.Knowledge.of.Beltane, alpha2, NA
std.ln.Q12.search.for.meaning -> Q7.Knowledge.of.Beltane, alpha3, NA
std.ln.Q11.spiritual.quest -> Q7.Knowledge.of.Beltane, alpha4, NA
Number.of.Attendances1 <-> Number.of.Attendances1, gamma1, NA
Age.band <-> Age.band, NA, 1
std.ln.Q12.search.for.meaning <-> std.ln.Q12.search.for.meaning, gamma3, NA
std.ln.Q11.spiritual.quest <-> std.ln.Q11.spiritual.quest, gamma4, NA
but get the error message:
Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, :
scan() expected 'a real', got 'NA\'
Any thoughts on why it's not working? Also if you know of any good SEM tutorials online?
Many thanks
Ross
-- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
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