readMoments | R Documentation |
This functions makes it simpler to input covariance, correlation, and raw-moment
matrices to be analyzed by the sem
function. The matrix
is input in lower-triangular form on as many lines as is convenient,
omitting the above-diagonal elements. The
elements on the diagonal may also optionally be omitted, in which case they
are taken to be 1.
readMoments(file="", text, diag=TRUE,
names=as.character(paste("X", 1:n, sep = "")))
file |
The (quoted) file from which to read the moment matrix,
including the path to the file if it is not in the current directory. If
|
text |
The moment matrix given as a character string, as an alternative
to specifying the |
diag |
If |
names |
a character vector containing the names of the variables, to label the rows and columns of the moment matrix. |
Returns a lower-triangular matrix (i.e., with zeroes above the main diagonal)
suitable for input to sem
.
John Fox jfox@mcmaster.ca
sem
R.DHP <- readMoments(diag=FALSE, names=c("ROccAsp", "REdAsp", "FOccAsp",
"FEdAsp", "RParAsp", "RIQ", "RSES", "FSES", "FIQ", "FParAsp"),
text="
.6247
.3269 .3669
.4216 .3275 .6404
.2137 .2742 .1124 .0839
.4105 .4043 .2903 .2598 .1839
.3240 .4047 .3054 .2786 .0489 .2220
.2930 .2407 .4105 .3607 .0186 .1861 .2707
.2995 .2863 .5191 .5007 .0782 .3355 .2302 .2950
.0760 .0702 .2784 .1988 .1147 .1021 .0931 -.0438 .2087
")
R.DHP
#the following will work only in an interactive sessions:
## Not run:
R.DHP <- readMoments(diag=FALSE, names=c("ROccAsp", "REdAsp", "FOccAsp",
"FEdAsp", "RParAsp", "RIQ", "RSES", "FSES", "FIQ", "FParAsp"))
.6247
.3269 .3669
.4216 .3275 .6404
.2137 .2742 .1124 .0839
.4105 .4043 .2903 .2598 .1839
.3240 .4047 .3054 .2786 .0489 .2220
.2930 .2407 .4105 .3607 .0186 .1861 .2707
.2995 .2863 .5191 .5007 .0782 .3355 .2302 .2950
.0760 .0702 .2784 .1988 .1147 .1021 .0931 -.0438 .2087
R.DHP
## End(Not run)
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