Displaying 20 results from an estimated 35 matches for "choicepoint".
2008 Jan 31
2
[OT] emacs / xemacs for unix without compile
...All,
Is there a emacs/xemacs for unix without compiling it? If it is
possible, I prefer something that I can use immediately after putting
it on the unix server.
Is it possible or am I too stupid to ask this kind of question?
Thanks for your insight!
--
===============================
WenSui Liu
ChoicePoint Precision Marketing
Phone: 678-893-9457
Email : wensui.liu at choicepoint.com
Blog : statcompute.spaces.live.com
2008 Jan 22
2
a Q about R in unix
...+emacs on unix with R? Any insight?
This will be an experimental use of R in our company. If I can make a
successful case out of it, we might be able to use it in a larger
scale. So your input and help are highly appreciated.
===============================
WenSui Liu
Statistical Project Manager
ChoicePoint Precision Marketing
(http://spaces.msn.com/statcompute/blog)
2007 Nov 08
1
finite mixture model (or latent class)
...Prob of Class j * F(X)j / sum(Prior-Prob
of Class i * F(X)i) for i in [1, K]
&
prediction = sum(prediction for class i * post-prob) for i in [1, K].
However, I am not sure if this is correct. Any insight?
Thanks a lot!
--
===============================
WenSui Liu
Statistical Project Manager
ChoicePoint Precision Marketing
(http://spaces.msn.com/statcompute/blog)
2007 Dec 24
2
mgarch
Is there a package or function for multivariate garch model in R? I am
having a hard time in locating one. Thanks for help in advance.
-Young
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2008 Feb 01
3
Phase Shift
Is there any implementation in R for finding the phase shift between
two continuous signals. I would like to find the average phase shift
for tow signals over two years.
thanks
Stephen
--
Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted
2008 Apr 03
1
How to ask for *fixed* number of distributions under parameterized Gaussian mixture model.
Dear R users:
I am wondering how to ask for *fixed* number of distributions under
parameterized Gaussian mixture model.
I know that em() and some related functions can predict the
parameterized Gaussian mixture model. However, there seems no
parameter to decide number of distributions to be mixed (if we known
the value in advance).
That is, assume I know the (mixed)data is from 3 different
2007 Nov 14
2
Log random number
Dear R users,
Simply my question is that how it is possible to generate some random numbers using rnorm( ) but in log transformed values.
Thank you,
Tobias
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2008 Feb 25
2
union of two data frames
I have a thirty thousand row data frame imported from excel and a
60,000 row data frame imported from excel. they share a common subset
of the same data and I would like to combine the two into one data
frame merged together on the data in common. I have looked at the
help file for merge and intersect and cbind and rbind etc... And I
can't figure it out. Thanks in advance
Stephen
--
2008 Feb 08
3
Loading Data to R
This is the most basic question ever...I haven't used R in a couple years
since college so I forget and haven't been able to find what I'm looking for
in any of the manuals.
I just need to figure out how to load a dataset into the program from excel!
Thanks!
CL
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2008 May 07
3
Importing data
Hi everyone, please I'm having problem importing data from Stata and excel. Help me out.
Thanks
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[[elided Yahoo spam]]
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2008 Mar 02
2
Recommended Packages
Having just update to R 2.6.2 on my old Windows laptop I notice that the
number of packages is growing exponentially and my usual approach of
get-em-all may not be viable much longer. Has any thought been given to
dividing "contributed" binaries into a recommended set, perhaps a couple
of hundred, and the remained. That way one could install the recommended
ones routinely and add in
2008 Feb 25
1
Read.xport function in package foreign
Hi All,
Sorry that I didn't provide enough information.
I've been trying to import SAS xport files that contain multiple files
using package foreign's read.xport. I first attempted this back in 2005
and had problems. Some of files that were present in the SAS xport file
weren't being created in R. I submitted my problem to the community:
2008 Mar 03
2
glm: offset
R 2.6.0
Windows XP
A question about running a generalized linear model.
I am running a glm with
(1) a poisson distribution and a log link:
family=poisson(link = "log")
and an offset.
I would like to know if I should express the offset as the log of the offset value, i.e.
offset=log(NumUniqPt)
or as:
offset=NumUniqPt
I suspect I need to use the log, bu t I can't find any
2008 Mar 02
3
emacs and R
At the suggestion of many people, I have installed emacs on my linux (Fedora 8.0) computer with the intention of using emacs as window interface to R (2.6.0). I have gone though the emacs tutorial and don't see any information about how I should use emacs to run R. Can anyone suggest a document that I might read? In the past I have used R on a Windows XP system and used the built-in windowing
2008 Mar 03
3
R data Export to Excel
Here is my R Code
x<-1:20000
y<-2:141
data.matrix<-data.matrix(data[,y])#create data.matrix
variableprobe<-apply(data.matrix[x,],1,var)
variableprobe #output variance across probesets
hist(variableprobe) #displaying histogram of variableprobe
write.table(cbind(data[1],
Variance=apply(data[,y],1,var)),file='c://variance.csv')
#export as a .csv file.
Output in Excel
all in 1
2008 Feb 18
4
newbie (me) needs to model distribution as two overlapping gaussians
Recently, I have been working with some data that look like two overlapping gaussian distributions. I would like to either
1) determine the mean and SD for each of the two distributions
OR
2) get some (bayesian ?) statistic that estimates how likely an observation is to belong to the left-hand or right-hand distribution
In case I'm using the wrong language, my data looks something like
2008 Jan 24
0
posterior probability in finite mixture
...ute the posterior probabilities of each
case for a new dataset without observed response (Y)? I want to know
the parametric form of such calculation such that I can calculate it
manually in excel or sql.
Thank you so much!
--
===============================
WenSui Liu
Statistical Project Manager
ChoicePoint Precision Marketing
(http://spaces.msn.com/statcompute/blog)
2008 Jan 27
2
[OT] Open source archive program on windows
I am looking for a recommendation for an open source competitor to Winzip.
I seem to recall Brian Ripley mentioning one in the last year or so, but
couldn't find it in the mail archives. (Searching on Ripley there is
somehow not terribly useful.)
Suggestions?
David Scott
_________________________________________________________________
David Scott Department of Statistics, Tamaki Campus
2007 Dec 24
2
ARIMA problem
Hi,
This is regarding the ARIMA model.
I am having time series data of stock of 2000 values. Using the ARIMA model
in R, I want the forcasted values for next 36 time points.
However when I run this model in R, I am getting same value for all 36 time
points.
I have tried to fit the data with ARIMA model by changing the parameters
p,d,q after looking at the errors and other criteria for
2008 Apr 30
8
Why R is 200 times slower than Matlab ?
I am switching from Matlab to R, but I found that R is 200 times slower than
matlab.
Since I am newbie to R, I must be missing some important programming tips.
Please help me out on this.
Here is the function:
## make the full pair-wise permutation of a vector
## input_fc=c(1,2,3);
## output_fc=(
1 1 1 2 2 2 3 3 3
1 2 3 1 2 3 1 2 3
);
grw_permute = function(input_fc){
fc_vector = input_fc