Displaying 3 results from an estimated 3 matches for "typewc".
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2008 May 29
1
appropriate covariance matrix for multiple nominal exogenous and multiple continuous endogenous variables in SEM
Hi,
I would like to use the sem package to perform a path analysis (no
latent variables) with a mixture of 2 nominal exogenous, 1 continuous
exogenous, and 4 continuous endogenous variables. I seek advice as to
how to calculate the appropriate covariance matrix for use with the sem
package.
I have read through the polycor package, and am confused as to the use
of "numeric" for
2002 Dec 01
1
generating contrast names
...asts(type) <- "contr.Treatment"
>
> lm(prestige ~ (income + education)*type) # default behaviour
Call:
lm(formula = prestige ~ (income + education) * type)
Coefficients:
(Intercept) income education
typeprof typewc
2.275753 0.003522 1.713275
15.351896 -33.536652
income:typeprof income:typewc education:typeprof
education:typewc
-0.002903 -0.002072 1.387809
4.290875
>
> options(decorate.factor.levels=c(...
2003 Feb 14
5
Translating lm.object to SQL, C, etc function
This is my first post to this list so I suppose a quick intro is in
order. I've been using SPLUS 2000 and R1.6.2 for just a couple of days,
and love S already. I'm reading MASS and also John Fox's book - both have
been very useful. My background in stat software was mainly SPSS (which
I've never much liked - thanks heavens I've found S!), and Perl is my
tool of choice for