Displaying 3 results from an estimated 3 matches for "stdcoef".
2012 Aug 03
1
SEM standardized path coefficients
...ing an SEM yields:
sem.mod = specifyModel('SEM_NDVI_AllS_model.txt')
sem.mod.cov = rawMoments(~ NDVI + All.S, data = df)
sem.mod.cov = sem.mod.cov[-1,-1]
sem.mod.cov
NDVI All.S
NDVI 0.7820657 13.53573
All.S 13.5357259 245.71360
sem1 = sem(sem.mod, sem.mod.cov, N=29)
stdCoef(sem1)
n2S n2S 0.97643950 All.S <--- NDVI
n2n n2n 1.00000000 NDVI <--> NDVI
s2S s2S 0.04656591 All.S <--> All.S
I am using version 3.0 of sem on R-14.0.
Thanks for any insight anyone can provide.
Allen Hurlbert, Ph.D.
Department of Biology
University of North Caroli...
2012 Mar 12
1
SEM eigen value error 0 X 0 matrix
...llbeing, disturbance5
wellbeing_happy <-> wellbeing_health, disturbance6
wellbeing_happy <-> wellbeing_life, disturbance7
wellbeing_health <-> wellbeing_life, disturbance8
wellbeing.analysis <- sem( wellbeing.model, gss.data.cov, nrow(gss.data_C) )
summary( wellbeing.analysis )
stdCoef( wellbeing.analysis )
effects( wellbeing.analysis )
pathDiagram( wellbeing.analysis, "WellbeingPathModel", standardize=TRUE,
edge.labels="values" )
And here are my model components once specified:
structure(c("belonging -> optimism", "autonomy -> optimism&...
2013 Mar 18
2
Confirmatory factor analysis using the sem package. TLI CFI and RMSEA absent from model summary.
...; ABILITY
cov3 0.3573852 0.06216556 5.748926 8.981225e-09 IDENTITY <--> VALUES
Iterations = 30
_________________________________________________________
As far as I can tell, the analysis has estimated parameters in the model, but I cannot obtain the fit indices. I have also used the stdCoef() command to obtain standardised coefficients. I have searched for similar issues on the R-help archive and on a number of forums, but haven't found anything useful. I have also examined the documentation for these packages and cannot find the problem. I am starting to think that I have missed...