Displaying 20 results from an estimated 2000 matches similar to: "Need some hint on faster data manipulation."
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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2008 Dec 03
1
stuck with repeated values
R Gurus,I have a vector of nearly 90,000 characters from which I have to
extract the index of the characters which are repeated. So suppose if
x<-c("a","a","b","a","b","c","d") then my output would be a vector having
the index where the values are repeated i.e (1,2,3,4,5). I have been able to
isolate out the values that are
2006 Aug 10
1
How to fit bivaraite longitudinal mixed model ?
Hi
Is there any way to fit a bivaraite longitudinal mixed model using R. I have
a data set with col names
resp1 (Y_ij1), resp2 (Y_ij2), timepts (t_ij), unit(i)
j=1,2,..,m and i=1,2,..n.
I want to fit the following two models
Model 1
Y_ij1, Y_ij2 | U_i = u_i ~ N(alpha + u_i + beta1*t_ij, Sigma)
U_i ~ iid N(0, sigu^2)
Sigma = bivariate AR structure
alpha and beta are vectors of order 2.
2006 Sep 01
0
defining error structure in bivariate mixed models
Hi,
Using indicator variables I have been able to fit and run the code for
fitting a bivariate mixed model using unstructured covariance matrix
The code is
lme.fit1<- lme(one.var~-1+indic1+indic2+I(indic1*d.time)+I(indic2*d.time),
random =~ -1+indic1+indic2|m.unit, weights = varIdent(~1|indic1)
,data = new.data)
My variables are
one.var :- the two response variables stacked one after
2007 May 08
0
Question on bivariate GEE fit
Hi,
I have a bivariate longitudinal dataset. As an example say,
i have the data frame with column names
var1 var2 Unit time trt
(trt represents the treatment)
Now suppose I want to fit a joint model of the form for the *i* th unit
var1jk = alpha1 + beta1*timejk + gamma1* trtjk + delta1* timejk:trtjk +
error1jk
var2 = alpha2 + beta2*timejk + gamma2* trtjk + delta2* timejk:trtjk +
2008 Feb 24
0
problem with ML estimation
dear list,
as a part my problem. I have to estimate some parameters using ML
estimation. The form of the likelihood function
is not straight forward and I had to use a for loop to define the function.
I used "optim" to maximise the result but
was not sure of the programme.
To validate my results, I tried to write a function to obtain the MLE of a
bivariate normal in the same manner.
On
2001 Nov 29
2
memory issue trying to solve too large a problem using hclust
Hi, all.
I'm trying to cluster 12,500 objects using hclust from package mva. The
distance matrix takes up nearly 600 MB. The distance matrix also needs to
be copied when being passed to the fortran routine that actually does the
clustering (it's modified during the clustering), so that's 1200 MB. I'm
actually on a machine with 2.5 GB of memory (and nothing else running), so I
2012 May 11
3
Calculating all possible ratios
I have a data matrix with genes as columns and samples as rows. I want to
create all possible gene ratios.Is there an elegant and fast way to do it in
R and write it to a dataframe?
Thanks for any help.
Som.
--
View this message in context: http://r.789695.n4.nabble.com/Calculating-all-possible-ratios-tp4627405.html
Sent from the R help mailing list archive at Nabble.com.
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2013 May 27
2
Error in running libvchan.
Hi,
I am trying to run libvchan on ARM Fast Model for VExpress platform for using inter domain communication. But there are some errors. I am attaching the strace outputs for vchan-node1 run in dom0 and domU. Has anybody faced these issues before.
Xl console 1The command is
Usage: vchan-node1 [client|server] [write|read] domid nodepath
my nodepath is - /local/domain/1/data/vchan-2-1
Regards
2018 May 09
0
Seasonal weekly average
Hi Shakeel,
Assuming that you are starting with a bunch of dates:
# make a vector of character strings that can be converted to dates
rep_dates<-paste(sample(1:30,500,TRUE),sample(1:12,500,TRUE),
sample(2013:2017,500,TRUE),sep="/")
# if this isn't your format, change it
date_format<-"%d/%m/%Y"
# create a data frame with a column of dates
2006 Jul 24
0
Debugging a XenU that goes to Zombie state
Once last night and the night before a XenU go into a Zombie state,
requiring a reboot. I''m not quite sure what is happening, and am
looking for advise on how to diagnose the problem.
.. While writing this email, it crashed again. This time I had an ''xm
console calcutta'' capturing the output.
I read a suggestion in these archives suggesting that I can just
2004 Nov 24
0
Off-list Posts
Folks,
Several of you have received rather blunt emails from me when you sent
me an off-list question or have continued an on-list thread off-list.
It''s not that I''m trying to be a jerk but please consider:
- There have now been over 50,000 downloads of Shorewall.
- There are over 1,000 subscribers to this list.
Assuming that each person downloading Shorewall has downloaded
2001 Apr 15
2
data manipulation in R
Dear List:
I have a data manipulation problem that I was unable
to solve in R. I did it in SQL, and it may be that
the solution in R is to do it in SQL, but I wondered
if people could imagine a vector-based solution.
Imagine a list A[i] of observers who observe some set
of events B[j]. Each observer i may observe one or
more events, and each event j may have been observed
by one or more
2007 Apr 16
6
BSNL caller ID (India)
Has anyone figured out the way of getting the caller id for BSNL on Asterisk 1.4.2
I have tried following link
http://bugs.digium.com/view.php?id=6683&nbn=24
but was not able to get it, although did not ge any error too.
I always get the caller id as asterisk.
Can someone please help.
Regards,
Sanjay Rajdev
2007 Mar 29
5
SIP RTP Tunnel
Hello,
is it possible to rout ALL RTP Data over Asterisk, like
SIP1 <---RTP---> Asterisk <---RTP---> SIP2
I know it seems quite useless. But I want to simulate a IAX -> SIP connection and have no Phonecard installed on my computer ;)
Thanx,
Kalle
2006 Dec 29
1
Presence issues with "Got SUBSCRIBE for extensions without hint. Please add hint to s"
Hello all,
I have a number of Polycom phones 601's and 430's and I'm seeing:
Got SUBSCRIBE for extensions without hint. Please add hint to s to context
local-hints
in the CLI over and over.
I have:
[local-hints]
exten => 110,hint,SIP/110
exten => 111,hint,SIP/111
exten => 112,hint,SIP/112
exten => 113,hint,SIP/113
exten => 114,hint,SIP/114
The hints seem to be
2012 Mar 27
4
Faster and faster
Hi Centos Team,
I was here the hard days in which CentOS 6 appeared would never
appear, and then was CentOS 5.6 (maybe 5.7...do not remember well)
that struggled to see the light and I was very afraid CentOS would not
survive... but as I was worried in the past actually I'm very
impressed of the speed of latest releases: what has changed? Just out
of curiosity...
Thanks for your hard work
2013 Jan 16
1
Problems regarding the package "BRugs"
Respected Sir,
With reference to my mail to you dated 8th
January,2013, and the reply by you dated 9th January, 2013, I am sending
this mail to you. I had a problem regarding running a program in the latest
version of the "BRugs" package in R 2.15.1 and 2.15.2. I want to mention
here that this program runs well to others, who are running it using the
earlier version
2011 May 26
1
Is this Asterisk issue of feature
Hi List,
I am confuse about this feature.
When we use Wait(20) in active call session then it's work. But when we use
after hangup the call then Asterisk don't wait from define time.
Ex:-
[call_log]
exten => 4368,1,Answer()
exten => 4368,n,Flite("Welcome")
exten => 4368,n,Set(__StartTime=${STRFTIME(${EPOCH},Asia/Calcutta,%Y-%m-%d
%H:%M:%S)})
exten =>
2014 Jan 13
0
How to get ringing sound in outbound call in asterisk
I have two server
Server_A(outbound call) for agent login and agent make a outbound call from
here and pass into server Server_B call
extension.conf
exten => _91XX.,1,AGI(agi://127.0.0.1:4577/call_log)
exten => _91XX.,n,Dial(SIP/${EXTEN}@192.168.53.197,,tToR)
exten => _91XX.,n,hangup()
Server_B[192.168.53.197] for call forwarding
extension.conf
exten =>