search for: grave

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

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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(...){ &gt...
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: