Displaying 20 results from an estimated 933 matches for "grave".

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gave

2008 Feb 02

1

ARCH LM test for univariant time series

Hi,
Does anyone know if R has a Lagrange multiplier (LM) test for ARCH
effects for univariant time series?
Thanks!
--
Tom
[[alternative HTML version deleted]]

2005 Jul 06

2

Plotting confidence intervals for lme

Hello and sorry to disturb.
I'm trying to plot the confidence intervals for the fixed effects of a lme.
I want to obtain graphically, if it is possible, a bar with Estimate, upper
and lower CI for each level of the factors.
I know how to do for a lm model but for a lme one, I tried with
plot(intervals(...)) and plot(ci(...)) from the gmodels package but it
doesn't work well.
Thanks

2005 Nov 11

3

no package 'Matrix' at the repositories

...t the repositories
I installed lme4, maps, mapproj, CircStats, scatterplot3d, gregmisc,
Hmisc without problems. To confirm, 'library(lme4)' produced the
following error:
Error: package 'Matrix' required by 'lme4' could not be found
What do you suggest?
Spencer Graves
p.s. I get the same result using several different (US) mirrors.
--
Spencer Graves, PhD
Senior Development Engineer
PDF Solutions, Inc.
333 West San Carlos Street Suite 700
San Jose, CA 95110, USA
spencer.graves at pdf.com
www.pdf.com <http://www.pdf.com>
Tel: 408-938-4420
Fax: 4...

2005 Sep 28

1

R-code for binormla distribution

Dear users,
does any one have a code (S or R) to compute the binormal distribution
(or the upper its quadrant area) other than the pmvnorm.
Thanks
--
Nabil Channouf
etudiant en Ph.D.
Bureau 3733
Departement d'Informatique et de Recherche Operationnelle (D.I.R.O.)
Universite de Montreal, C.P. 6128, succ. Centre-Ville, Montreal, H3C 3J7
Tel.: (514) 343-6111, poste 1796 Fax.: (514) 343-5834

2003 Jun 01

6

compositional data: percent values sum up to 1

again, under another subject:
sorry, maybe an all too trivial question. But we have power data from J
frequency spectra and to have the same range for the data of all our
subjects, we just transformed them into % values, pseudo-code:
power[i,j]=power[i,j]/sum(power[i,1:J])
of course, now we have a perfect linear relationship in our x design-matrix,
since all power-values for each subject sum

2005 Aug 12

3

General expression of a unitary matrix

Hi, all,
Does anybody got the most general expression of a unitary matrix?
I found one in the book, four entries of the matrix are:
(cos\theta) exp(j\alpha); -(sin\theta)exp(j(\alpha-\Omega));
(sin\theta)exp(j(\beta+\Omega)); (cos\theta) exp(j\beta);
where "j" is for complex.
However, since for any two unitary matrices, their product should also
be a unitary matrix. When I

2005 Jul 08

1

Finite Mixture Models with logistic regression

Do we have any R package that can do analysis on finite mixture model with
logistic regression? Thanks
Faith
Feng Gao
Dept. of Statistics
Virginia Tech.
Email: fgao at vt.edu

2005 Aug 17

2

power of a matrix

Dear all,
I have a population with three age-classes, at time t=0 the population
is:
n.zero <- c(1,0,0)
I have a transition matrix A which denotes "fertility" and "survival":
A <- matrix(c(0,1,5, 0.3,0,0, 0,0.5,0), ncol=3, byrow=TRUE)
To obtain the population at t=1, I calculate:
A %*% n.zero
To obtain the population t=2, I calculate:
A %*% (A %*% n.zero)
... and so

2009 Feb 09

3

Michael Graves post

Michael Grave just posted a question about surround conferences.
http://www.facebook.com/notes.php?id=564633430#/note.php?note_id=5009726
3908&id=564633430&index=0
I didn't see it posted on the ast-list, what do you think? Does
something like this have potential?
I'...

2005 Sep 19

5

FDR analyses: minimum number of features

Dear List,
We are planning a genotyping study to be analyzed using false discovery
rates (FDRs) (See Storey and Tibshirani PNAS 2003; 100:9440-5). I am
interested in learning if there is any consensus as to how many
features (ie. how many P values) need to be studied before reasonably
reliable FDRs can be derived. Does anyone know of a citation where
this is discussed?
Bill Dupont
William D.

2004 Feb 26

2

RE: system.time(), sys.time() etc

> From: Spencer Graves [mailto:spencer.graves at pdf.com]
>
> Martin says, "This is another instance of S-Plus following R
> behind and doing it incompatibly [with a reason?] ... ."
>
> This is one example of a major issue in "how to wage and win a
> standards war",...

2005 Jun 15

1

Kalman Filtering?

...2)
Does anyone have any comments on this? The data for 1892, 1894, and
1897 seem slightly outside the 90% confidence interval in Durbin and
Koopman (2001, Fig. 2.1) but just inside the figure created by this code.
Am I doing this correctly? Is there an easier way?
Thanks,
spencer graves

2018 Feb 20

5

deparseDots to get names of all arguments?

...s(...)?
????? I'm able to get the name of the first argument but not the second:
deparseDots <- function(...){
? deparse(substitute(...))
}
a <- 1
b <- 2
deparseDots(a, b)
[1] "a"
????? I'd like to get c('a', 'b').
????? Thanks,
????? Spencer Graves
> sessionInfo()
R version 3.4.3 (2017-11-30)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS High Sierra 10.13.3
Matrix products: default
BLAS:
/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versi...

2005 Jul 11

4

exact values for p-values - more information.

Hi there,
If I do an lm, I get p-vlues as
p-value: < 2.2e-16
This is obtained from F =39540 with df1 = 1, df2 = 7025.
Suppose am interested in exact value such as
p-value = 1.6e-16 (note = and not <)
How do I go about it?
stephen

2004 Jul 24

3

help(package)->sink()

...st.txt", while displaying
mclustInfo on my screen. After a few more failed attempts, I gave up
trying to be clever and copied the text from the screen into Word.
Is this a bug, that sink does not capture the output of objects of
class packageInfo?
Best Wishes,
spencer graves

2004 Aug 28

4

removing invariant columns from a matrix

I'm looking for an efficient way of removing zero-variance columns from
a large matrix.
Any suggestions?
Thanks,
- Moises
[[alternative HTML version deleted]]

2013 Feb 04

4

rJava works with 32-bit but not 64

...States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rJava_0.9-3
--
Spencer Graves, PE, PhD
President and Chief Technology Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San Jos?, CA 95126
ph: 408-655-4567
web: www.structuremonitoring.com

2013 May 20

1

Objects created by more than one data call?

...t argument for a function. With LazyData, that NOTE
disappears. However, then I get, "Warning: objects 'Hstarts',
'Hstarts', 'MedExp' are created by more than one data call".
What do you suggest I do to fix this problem?
Thanks,
Spencer Graves
> sessionInfo()
R version 3.0.0 (2013-04-03)
Platform: i386-w64-mingw32/i386 (32-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached ba...

2018 Feb 21

0

deparseDots to get names of all arguments?

...sin(3:1), z=stop("Oops"), "untagged arg")
$y
1/(1:10)
$z
stop("Oops")
[[3]]
[1] "untagged arg"
> names(.Last.value)
[1] "y" "z" ""
Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Tue, Feb 20, 2018 at 2:36 PM, Spencer Graves <
spencer.graves at effectivedefense.org> wrote:
> Hi, All:
>
>
> How can I get the names of all the arguments in dots(...)?
>
>
> I'm able to get the name of the first argument but not the second:
>
>
>
> deparseDots <- function(...){
>...

2004 Jun 04

2

Error() term in glm model formula

Hello,
My data are numbers of trees in plots sampled in a number of forest stands.
Some stands were subjected to a treatment, others not. Several plots were
sampled per stand to get a better idea of what the stand means were, but
replication is really at the stand level. Therefore I think this is a
split-plot design.
I would like to know whether the treatment affected the number of trees, so: