Displaying 9 results from an estimated 9 matches for "estimted".
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estimated
2006 Apr 11
3
problems with rounding in output
Perhaps someone will have a solution to my more general problem, but
here is the specific one:
I used the round() function to round some estimates to 3 decimal
places. I then sent put the rounded estimates in a matrix and used
latex() to make a LaTeX table from them. However, in my table, there
are estimtes which only have 2 decimal places. I assume that the third
decimal place in these numbers
2005 Apr 05
2
Stats Question: Single data item versus Sample from Norma l Distribution
Here's one possibility, assuming muhat and sigmahat are estimtes of mu and
sigma from N iid draws of N(mu, sigma^2):
tStat <- abs(x - muhat) / sigmahat
pValue <- pt(tStat, df=N, lower=TRUE)
I'm not quite sure what df tStat should have (exercise for math stat), but
given fairly large N, that should make little difference.
Andy
> From: Ross Clement
>
> Hi. I have a
2010 Jan 28
3
weighted least squares vs linear regression
I need to find out the difference between the way R calculates weighted
regression and standard regression.
I want to plot a 95% confidence interval around an estimte i got from least
squares regression.
I cant find he documentation for this
ive looked in
?stats
?lm
?predict.lm
?weights
?residuals.lm
Can anyone shed light?
thanks
Chris.
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2005 Feb 02
1
random effects in lme
Dear all,
Suppose I have a linear mixed-effects model (from the package nlme) with
nested random effects (see below); how would I present the results from
the random effects part in a publication?
Specifically, I?d like to know:
(1) What is the total variance of the random effects at each level?
(2) How can I test the significance of the variance components?
(3) Is there something like an
2009 May 04
1
Nelson-Aalen estimator of cumulative hazard
Hi,
I am computing the Nelson-Aalen (NA) estimate of baseline cumulative hazard in two different ways using the "survival" package. I am expecting that they should be identical. However, they are not. Their difference is a monotonically increasing with time. This difference is probably not large to make any impact in the application, but is annoyingly non-trivial for me to just
1998 May 22
0
R-beta: R-0.61.3 for Win95/NT available
I have just put on ftp://sirio.stat.unipd.it/pub/R a new version
of R for Win95/NT.
The main difference concerns dynamic linking (see below).
In addition, the binary distribution contains many of the
available packages (all the ones that I have installed on
my Unix machine).
In the afternoon, I will upload the files on CRAN.
g.m.
This is the README file:
rw0613b.zip is a new binary
1998 May 22
0
R-beta: R-0.61.3 for Win95/NT available
I have just put on ftp://sirio.stat.unipd.it/pub/R a new version
of R for Win95/NT.
The main difference concerns dynamic linking (see below).
In addition, the binary distribution contains many of the
available packages (all the ones that I have installed on
my Unix machine).
In the afternoon, I will upload the files on CRAN.
g.m.
This is the README file:
rw0613b.zip is a new binary
2009 Nov 07
1
lme4 and incomplete block design
Dear list members,
I try to simulate an incomplete block design in which every participants
receives 3 out of 4 possible treatment. The outcome in binary.
Assigning a binary outcome to the BIB or PBIB dataset of the package
SASmixed gives the appropriate output.
With the code below, fixed treatment estimates are not given for each of
the 4 possible treatments, instead a kind of summary
2009 May 05
1
self organizing map advice for categorical data
Hello,
Could anybody offer any advice about implementing a Kohonen self organizing map for categorical data? Specifically I am wondering if there are any pre-existent packages that can deal with categorical data and/or how one would compare the input vector of categoricals with the self organizing map nodes.
Thanks in advance.
George Chen
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