Displaying 20 results from an estimated 1000 matches similar to: ""Unable to optimize" error returned in factanal using R-3.0.1, Windows 64 bit, and OpenBLAS"
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
2008 Sep 09
1
Addendum to wishlist bug report #10931 (factanal) (PR#12754)
--=-hiYzUeWcRJ/+kx41aPIZ
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
Hi,
on March 10 I filed a wishlist bug report asking for the inclusion of
some changes to factanal() and the associated print method. The changes
were originally proposed by John Fox in 2005; they make print.factanal()
display factor correlations if factanal() is called with rotation =
2005 Jun 26
0
Factor correlations in factanal
Dear R-devel list members,
Ben Fairbank draw it to my attention that factanal() (in the stats package)
doesn't report factor correlations for oblique rotations. Looking at the
source, I see that factanal also doesn't save the factor-transformation
(rotation) matrix from which these correlations can be computed. I've
modified the source, attached below, so that the transformation
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
2004 Aug 10
0
Check failed after compilation (PR#7159)
Full_Name: Madeleine Yeh
Version: 1.9.1
OS: AIX 5.2
Submission from: (NULL) (151.121.225.1)
After compiling R-1.9.1 on AIX 5.2 using the IBM cc compiler, I ran the
checks. One of them failed. Here is the output from running the check solo.
root@svweb:/fsapps/test/build/R/1.9.1/R-1.9.1/tests/Examples:
># ../../bin/R --vanilla < stats-Ex.R
R : Copyright 2004, The R
2006 Feb 24
1
Extracting information from factanal()
Dear list members,
I apologize for putting this (probably) very basic question on the
mailing list. I have scanned through the R website (using search) but
did not found an answer.
(code included below)
A factor matrix is simply extracted (which can then subsequently be
exported using write.table) by FACT$loadings[1:6,].
I would also like to specifically extract and export
2003 May 01
0
factanal
# I have a question about how factanal is calculating the regression factor
# scores based on an oblique rotation (promax) of the factors.
#
# As is explained in the help file, regression factor scores are
# obtained as
#
# hat f = Lambda' Sigma^-1 x
#
# However, according to Harman's "Modern Factor Analysis" (e.g. second
# edition, pp. 351-352) the formula is
#
# hat f = Phi
2006 Aug 11
1
- factanal scores correlated?
Hi,
I wonder why factor scores produced by factanal are correlated, and I'd
appreciate any hints from people that may help me to get a deeper
understanding why that's the case. By the way: I'm a psychologist used
to SPSS, so that question my sound a little silly to your ears.
Here's my minimal example:
***********************************************
v1 <-
2007 May 09
1
step() in sink() and Sweave()
Dear developers,
I just noticed that step() function currently prints the current model
using message(), but the resulting model using print(). The relevant
commands within the step() body are:
if (trace) message("Start: AIC=", format(round(bAIC, 2)), "\n",
cut.string(deparse(as.vector(formula(fit)))), "\n")
(with example() output:)
Start: AIC=190.69
2005 Apr 05
1
extracting Proportion Var and Cumulative Var values from factanal
Hi R users,
I need some help in the followings:
I'm doing factor analysis and I need to extract the loading values and
the Proportion Var and Cumulative Var values one by one.
Here is what I am doing:
> fact <- factanal(na.omit(gnome_freq_r2),factors=5);
> fact$loadings
Loadings:
Factor1 Factor2 Factor3 Factor4 Factor5
b1freqr2 0.246 0.486 0.145
2004 Dec 07
1
how to test the existence of a name in a dataframe
I wanted to test if there exists already a name (which is
incidentally a substring of another name) in a dataframe.
I did e.g.:
> data(swiss)
> names(swiss)
[1] "Fertility" "Agriculture" "Examination" "Education"
[5] "Catholic" "Infant.Mortality"
> ! is.null(swiss$EduX)
[1] FALSE
> !
2009 Oct 07
0
how to extract the second table from the factanal functions result's loadings part?
Hi All,
Can someone help me?The way to do this may be very easy but i do not know.
*Question1:----*
factanal() function produces the results in this way:--
*RESULTS:--*
*>fact1<- factanal(data_withNA,factors=1,rotation="none")
>fact1$"loadings"*
Loadings:
Factor1
i1 0.784
i2 0.874
i3 0.786
i4 0.839
i5 0.778
i6 0.859
i7 0.850
i8 0.763
i9 0.810
i10 0.575
2007 Apr 20
2
sorting data in R
hello,
I'd like know how to sort a data frame in R for example how I should do to sort by Catholic with swiss data frame like below
thanks
Fertility Agriculture Examination Education Catholic Infant.Mortality
Courtelary 80.2 17.0 15 12 9.96 22.2
Delemont 83.1 45.1 6 9 84.84 22.2
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
2001 Feb 09
1
starting values for uniquenesses in factanal()
Dear R-help,
Using R 1.2.1 on Windows98 to run a factor analysis on a 64x150 matrix of
data generated from a simulation model, factanal() reported that it failed
to find a solution. Looking at the factanal code, I see the immediate
condition that triggered the result:
if (best == Inf)
stop("Unable to optimize from these starting value(s)")
So I am sure factanal() is giving
2007 May 03
3
factanal AIC?
Dear list members,
Could any expert on factor analysis be so kind to explain how to calculate AIC on the output of factanal. Do I calculate AIC wrong or is factanal$criteria["objective"] not a negative log-likelihood?
Best regards
Jens Oehlschl?gel
The AIC calculated using summary.factanal below don't appear correct to me:
n items factors total.df rest.df model.df
2007 May 03
3
factanal AIC?
Dear list members,
Could any expert on factor analysis be so kind to explain how to calculate AIC on the output of factanal. Do I calculate AIC wrong or is factanal$criteria["objective"] not a negative log-likelihood?
Best regards
Jens Oehlschl?gel
The AIC calculated using summary.factanal below don't appear correct to me:
n items factors total.df rest.df model.df
2007 Jul 09
1
factanal frustration!
Hi.
It seems that nearly every time I try to use factanal I get the following
response:
>faa2db1<-factanal(mretdb1,factors=2,method="mle",control=list(nstart=25))
Error in factanal(mretdb1, factors = 2, method = "mle", control =
list(nstart = 25)) :
unable to optimize from these starting value(s)
>
In the case cited above, mretdb1 is synthetic data created
2002 Feb 12
1
Best Subsets regression
Hi,
I have found a minor problem with leaps(). In 1.3.1 under Windows 2000 I
seem to only be able to obtain values for one statistic at a time. That is
choosing
method=c("Cp","adjr2","r2")
just gives Cp values.
To mimic the output of Minitab's
MTB > BReg 'Fertility' 'Agriculture'-'Infant.Mortality' ;
SUBC> NVars 1 5;
SUBC>
2006 Mar 15
3
Help on factanal.fit.mle
Hi
Can anybody please suggest me about the documentation of "factanal.fit.mle()"
(Not factanal()------ searching factanal.fit.mle() in R always leads to
factanal()).
Is there any function for doing principal component factor analysis in R.
Regards
Souvik Bandyopadhyay
JRF,
Dept Of Statistics
Calcutta University
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