Displaying 20 results from an estimated 900 matches similar to: "SEM for categorical data"
2007 Aug 23
0
Output display problem
Hi
I have used the hetcor function on dataset which consists of about 40
variables. Since the output is quite large entire output is not visible on
the R screen. Is there a way, I can retrieve the output that is not
visible?
Thank you
Regards
Upasna
--
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Upasna Sharma
Research Scholar
Shailesh J. Mehta School of Management,
2007 Aug 01
0
Goodman Kruskal's tau
Hi
I need to know which package in R calculates the Goodman Kruskal's tau
statistic for nominal data. Also is there any implementation for multiple
classification analysis (Andrews at al 1973) in R? Any information on this
would be greatly appreciated.
Thank you
Upasna
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Upasna Sharma
Research Scholar
Shailesh J. Mehta
2008 Apr 01
1
SEM with a categorical predictor variable
Hi,
we are trying to do structural equation modelling on R. However, one of our
predictor variables is categorical (smoker/nonsmoker). Now, if we want to
run the sem() command (from the sem library), we need to specify a
covariance matrix (cov). However, Pearson's correlation does not work on the
dichotomous variable, so instead we produced a covariance matrix using the
Spearman's (or
2002 Feb 21
2
Re: Factor analysis of categorical or mixed categorical/continuousdata in
I am looking to fit one or more latent categorical variables to data that is
a mixture of categorical and continuous variables. Factor analysis would
work for continuous data, latent class analysis for categorical data. I
understand that in a package such as MPlus I could perform a single analysis
of both data types. Are there similar routines available in R?
Stuart
-----Original Message-----
2004 Nov 28
2
Tetrachoric and polychoric ceofficients (for sem) - any tips?
About two years ago there was a thread about this which suggested that at
that time nobody had these coefficients ready to go.
(a) has anyone in the meanwhile programmed them?
(b) I think I can see how to do the tetrachoric one with mvtnorm on similar
lines to an example on the help page so will try that if nobody else
already has
(c) looking at the polychoric one makes me realise yet again
2007 Jul 12
3
multiple plots in a graph
Hi,
I have to generate 10 cdfs in a graph. I need to compare the cdf's
nature by plotting ten cdfs in a graph. Thus, I need multiple plots in a
graph.
I would appreciate if you could give some solution to the problem asap.
Thanking you,
Sincerely,
Ajay.
--
Ajay Singh
Research Scientist,
SOM, IIT-Bombay, Powai,
MUMBAI-400076, MH (INDIA).
2005 Apr 18
1
polycoric correlation
Dear R-users
Could anyone tell me which library contains a function
to compute polycoric correlations?
I wonder the same question was asked a while ago, but
I could not locate the mail in the R-help archives.
Sorry for bothering you.
Sincerely
------------------------
Hiroto Miyoshi
????
h_m_ at po.harenet.ne.jp
2007 Oct 29
1
biserial correlation with pkg polycor
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2017 Jan 17
2
GSOC project
Hi,
I think a nice project would be to write an application to figure out those latencies automatically maybe even based on envydis.
It could generate latency information based on thread count, register usage, instruction/instruction class, hw unit used. Or even tries to figure out what kind of units exist. Like instructions out of a group which are free to issue/execute after instructions out
2017 Jan 17
2
GSOC project
Hello,
I am quite interested in the project "Instruction Scheduler" under X.org.
Please tell me where can I find a detailed idea of the project and how to
start it. I think I have the given prerequisites.
Regards
Shailesh Tripathi
Shailesh Tripathi
B.Tech. Part-IV
Electronics Engineering
IIT-BHU (Varanasi)
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2012 Jan 20
1
Point biserial correlation => Is there any specific command or could I just use cor.test?
Hello,
I found in the forum two threads about point biserial correlation. One of
them (1) mentioned "a point-biserial correlation is just a Pearson
correlation where one of the variables is dichotomous. Thus, the command
is just the normal cor function". The other (2) mentioned "Professor Fox's
package polycor" as a way to calculate point biserial correlation?
2007 Aug 21
2
Partial comparison in string vector
Hi list members
I have a vector of strings
x=c("w","ex","ee")
And I want to get a logical vector showing the positions where my search
string "e" matches the elements partially, i.e. is at least the left-hand
part of the target strings, i.e. I want to get a vector FALSE TRUE TRUE.
Any ideas?
Thanks
Steve Powell
proMENTE social research
research |
2005 Mar 09
2
Dropping coloumns while redaing dtaa from text file.
Hi
I have a huge text file and .dat file from which I want to read data. I do
not need all the columns in the files. I want to extract only some columns
from the .txt file or the .dat file, because reading the entire file is
becoming very difficult due to memory issues. Is it possible to extract a
few columns from .txt or .dat file while reading the data in R?
Thanks
Upasna
--
"The past
2013 Aug 20
0
[LLVMdev] Trying to run qt app compiled to bit code Assertion failed: (Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!")
Looks like a bug in the DebugIR pass. I imagine that without the -debug–ir flag, you will be able to get a little further.
Nonetheless, can you send me the "bitcodetestqtapp" that you're running, or steps to reproduce? I'd love to take a look.
Thanks,
Dan
From: Shailesh Kumar <shaileshkumar41 at yahoo.com<mailto:shaileshkumar41 at yahoo.com>>
Reply-To: Shailesh
2013 Aug 20
2
[LLVMdev] Trying to run qt app compiled to bit code Assertion failed: (Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!")
Hi,
I am trying to run a simple qt 5 application compiled to bitcode on OS X. I am getting the following error. I have modified lli to load qt libraries. When I use with option mcjit, I get the following error
lli -use-mcjit -debug-ir bitcodetestqtapp
Assertion failed: (Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!"), function getTypeSizeInBits, file
2003 Mar 31
2
point-biserial correlation
Dear list,
has anyone written a package/function in R for computing a point-
biserial resp. biserial correlation?
Thanks in advance
Bernd
2016 Apr 16
2
Problem: No p-value for a point-baserial correlation with R
Dear community
I'm pretty new to R and I'm trying to do a Point-baserial correlation for a nominal dichotomous variable with a interval scaled variable. It works fine, but the output just shows me the correlation and nothing else (p-Value would be important).
I tried it with the following codes:
- biseral.cor()
- cor.biseral()
- I also tried a polyserial() I've found on this
2011 Apr 25
1
xenserver and xenvm connectivity issue
Hi,
I am new to citrix xen server. I have sucesfully installed citrix xen server
5.6.1 Fp1(free version) on my system. and through xencenter I have connected
citrix xenserver and created vm (centos 5.5 32 bit), Installed Xen-tools in
centos.
My xenserver and xen vm ip details are below
Xenserver
Ip address - 192.168.1.5
Netmask - 255.255.255.0
Gateway - 192.168.1.1 which is my xencenter
2013 Jan 23
2
CFA with lavaan or with SEM
Hi
Sorry for the rather long message.
I am trying to use the cfa command in the lavaan package to run a CFA however I am unsure over a couple of issues.
I have @25 dichotomous variables, 300 observations and an EFA on a training dataset suggests a 3 factor model.
After defining the model I use the command
fit.dat <- cfa(model.1, data=my.dat, std.lv = T, estimator="WLSMV",
2004 Oct 29
1
All users able to access printer
Hi all,
I have setup with linux samba-server(ver 2.2.1a) as my
print-server under user security model with printer access allowed only
for a few users. It's so happening that samba is allowing any users to
fire print jobs on the shared printers,even those users who are not in
the valid users list.
However it is fine with normal shared folders ,where only the valid user
are able to