Displaying 20 results from an estimated 1000 matches similar to: "Extracting information from factanal()"
2009 Aug 11
3
loadings function (PR#13886)
Full_Name: Mike Ulrich
Version: 2.9
OS: Mac OSX
Submission from: (NULL) (69.169.178.34)
The help documentation for loadings() lists more then one parameter. The
function call only expects one parameter. The digits, cutoff, and sort
parameters are not used in the function.
## S3 method for class 'loadings':
print(x, digits = 3, cutoff = 0.1, sort = FALSE, ...)
## S3 method for class
2009 Mar 31
3
Factor Analysis Output from R and SAS
Dear Users,
I ran factor analysis using R and SAS. However, I had different outputs from
R and SAS.
Why they provide different outputs? Especially, the factor loadings are
different.
I did real dataset(n=264), however, I had an extremely different from R and
SAS.
Why this things happened? Which software is correct on?
Thanks in advance,
- TY
#R code with example data
# A little
2005 Apr 05
1
extracting Proportion Var and Cumulative Var values from factanal
Hi R users,
I need some help in the followings:
I'm doing factor analysis and I need to extract the loading values and
the Proportion Var and Cumulative Var values one by one.
Here is what I am doing:
> fact <- factanal(na.omit(gnome_freq_r2),factors=5);
> fact$loadings
Loadings:
Factor1 Factor2 Factor3 Factor4 Factor5
b1freqr2 0.246 0.486 0.145
2003 Jan 20
1
make check for R-1.6.2 on IBM AIX
Dear all,
The 'make check' step fails for the pacakge mva on IBM AIX.
The tail of the Rout log file looks like:
> for(factors in 2:4) print(update(Harman23.FA, factors = factors))
Call:
factanal(factors = factors, covmat = Harman23.cor)
Uniquenesses:
height arm.span forearm lower.leg weight
0.170 0.107 0.166
2006 Aug 11
1
- factanal scores correlated?
Hi,
I wonder why factor scores produced by factanal are correlated, and I'd
appreciate any hints from people that may help me to get a deeper
understanding why that's the case. By the way: I'm a psychologist used
to SPSS, so that question my sound a little silly to your ears.
Here's my minimal example:
***********************************************
v1 <-
2004 Nov 30
1
Info
I am having difficulty obtaining the scores from my principal component
analysis. I have used this method before and have had no problems. The
data set that I am using this time is similar to what I have used in the
past. What do I need to do to my dataset in order for me to obtain these
scores?
R screen says the following message
Error in factanal(covmat = pasa.cov, factors = 4) :
2009 Dec 08
1
{Lattice} help.
Hi All,
I have a 4-dimensional data. I'm using barchart() function from lattice
package. The R code and data are below - code includes one for stack=TRUE
and other for stack=FALSE.
I would like to present the data in another form which would be plotting
Factor3 levels (P, Q, R, S) as two stacked bars (side by side). Like, for
each level of Factor1 there should be two bars: first bar showing
2007 Feb 06
3
How-To construct a cov list to use a covariance matrix in factanal?
Hi,
I have a set of covariance matrices but not the original data. I want to carry out some exploratory factor analysis. So, I am trying to construct a covariance matrix list as the input for factanal. I can construct a list which includes the cov, the centers, and the n.obs. But it doesn't work. I get an error that says "Error in sqrt(diag(cv)) : Non-numeric argument to mathematical
2010 Jan 12
3
How to get minimum value by group
I'd like to get a long data set of minimum values from groups in another data
set.
The following almost does what I want. (Note, I'm using the word factor
differently from it's meaning in R; bad choice of words)
myframe = data.frame(factor1 = rep(1:2,each=8), factor2 =
rep(c("a","b"),each=4, times=2), factor3 = rep(c("x","y"),each=2, times=4),
2009 Dec 03
2
(Grouped + Stacked) Barplot
Hi All,
I have googled and tried finding if someone has ever tried producing
(Grouped + Stacked) Barplot. I couldn't find one.
My data needs to be reshaped, but once it is done it would be something like
this:
Factor1 Factor2 Factor3 Value
A X P 10
A X Q 20
A Y P 20
A Y Q 5
A Z P 20
A Z Q 10
B X P 20
B X Q 10
B
2013 Mar 06
6
Ggplot2: Moving legend, change fill and removal of space between plots when using grid.arrange() possible use of facet_grid?
Hi,
# For publications, I am not allowed to repeat the axes. I have tried to
remove the axes using:
# yaxt="n", but it did not work. I have not understood how to do this in
ggplot2. Can you help me?
# I also do not want loads of space between the graphs (see below script
with Dummy Data).
# If I could make it look like the examples on the (nice) examples page:
#
2013 Mar 07
3
ggpliot2: reordering of factors in facets facet.grid(). Reordering of factor on x-axis no problem.
Hi everyone (again),
before you all start screaming that the reordering of factors has been
discusse on several threads and is not particular to ggplot2, hear me out.
I can easily reorder my x-axis factor in facet.grid() in ggplot2. What I
cannot reorder are the factors represented on the strips. I can see that the
graphs are changing, so I am afraid of what it is I am doing. Why is ggplot2
2011 Apr 27
2
multiple comparisons on a between factor
Dear list,
im facing an issue of statistical data analysis that I consider myself
unable to resolve in R so i hope to get some valuable insights from you. i
run an ANOVA with four factors; factor4 is an between factor (two different
groups measured), the others are withins (tested across /all/ subjects).
accordingly, my model looks as follows:
fm1
2003 Nov 09
2
How to create unique factor from two factors? + Boostrap Q
This might be easy but I'm very new to R and this question doesn't seem to
have any nice keywords that bring up relevant search results when I search
the CRAN search engine. Therefore, I'll plead (as I have in the recent
past) Newbie status.
I have a data frame with two factors (Factor 1 and 2) which together specify
another unique level. I want to create a third factor in the
2002 Jul 08
0
factanal results interpretation - am I right here?
Hi,
I have obtained some results with factanal that seem to support a hypothesis I already had, and I'd like to verify that I can indeed conclude this from this new analysis.
We had subjects reproduce perceived trajectories with a device that allowed us to measure spatial position (the path) and the device's orientation at any of those positions. From this, we calculated the rotation of
2009 Aug 25
3
adding factor scores back to an incomplete dataset...
I am sure there is a simple way to do the following, but i haven't been
able to find it. I am hoping a merciful soul on R-help could point me in
the right direction.
I am doing a factor analysis on survey data with missing values. to do
this, I run:
FA1<-factanal(na.omit(DATA), factors = X, rotation = 'oblimin', scores =
'regression')
Now that I have my factors and
2003 May 01
0
factanal
# I have a question about how factanal is calculating the regression factor
# scores based on an oblique rotation (promax) of the factors.
#
# As is explained in the help file, regression factor scores are
# obtained as
#
# hat f = Lambda' Sigma^-1 x
#
# However, according to Harman's "Modern Factor Analysis" (e.g. second
# edition, pp. 351-352) the formula is
#
# hat f = Phi
2008 Jun 10
1
Problem with by(... , median)
Hello everyone,
I am new to R, I have been using SAS for a while. Not surprisingly, I
find R much better in graphics, which is publication ready right away.
Recently, I have been trying to calculate some basic statistics using R.
I have a dataset of multiple rows per subject. For example:
Subject Date Factor1 Factor2 Factor3
P1 0.5 1 1 3
P1 1 3 2 5
P1 2 3 5 NA
...
P2 0.5 1 6 4
P2 1 2 NA 7
P2
2009 Dec 11
3
Correcting for missing data combinations
I can think of many brute-force ways to do this outside of R, but was
wondering if there was a simple/elegant solution within R instead.
I have a table that looks something like the following:
Factor1 Factor2 Value
A 11/11/2009 5
A 11/12/2009 4
B 11/11/2009 7
B 11/13/2009 8
>From that I need to generate all permutations of Factor1 and Factor2 and
force a 0 for any combination that doesn?t
2013 May 29
0
"Unable to optimize" error returned in factanal using R-3.0.1, Windows 64 bit, and OpenBLAS
Hello,
I have been trying for weeks to compile a 64-bit Rblas. I started with ATLAS where I have had success in the past, but 64 bit was not behaving, and as each compilation takes between 9 and 12 hours, "test, check, and revise" was not going to be really viable. I therefore switched to OpenBLas (OPBL). I was successful in compiling R-3.0.1 and an OPBL-based BLAS for Windows 64bit