search for: mat2

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2008 Mar 05
1
coxme - fitting random treatment effect nested within centre
...dom treatment effect nested within centre. I got 3 treatments (0,1,2) and 3 centres. I used following commands, but got an error. > ugroup=paste(rep(1:3,each=3),rep(0:2,3),sep='/') > mat1=bdsmatrix(rep(c(1,1,1,1,1,1,1,1,1),3),blocksize=rep(3,3),dimnames=list(ugroup,ugroup)) > mat2=bdsmatrix(rep(c(0,0,0,0,0,0,0,0,1),3),blocksize=rep(3,3),dimnames=list(ugroup,ugroup)) > group=paste(dat1$centre,dat1$treat,sep='/') > coxme(Surv(time,status) ~ as.factor(treat), data=dat1,random= ~1|group,varlist=list(mat1,mat2),rescale=F,pdcheck=FALSE) Error in coxme.fit(X, Y,...
2013 Sep 02
3
Product of certain rows in a matrix
Hi, You could try: A<- matrix(unlist(read.table(text=" 1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 1 ",sep="",header=FALSE)),ncol=3,byrow=FALSE,dimnames=NULL) library(matrixStats) ?res1<-t(sapply(split(as.data.frame(A),as.numeric(gl(nrow(A),2,6))),colProds)) ?res1 #? [,1] [,2] [,3] #1??? 4?? 10?? 18 #2?? 63?? 64?? 63 #3?? 18?? 10??? 4
2006 Aug 15
4
nls
Is there anyway to change any y[i] value (i=2,...6) to make following NLS workable? x <- c(0,5,10,15,20,25,30) y <- c(1.00000,0.82000,0.68000,0.64000,0.66667,0.68667,0.64000) lm(1/y ~~ x) nls(1/y ~~ a+b*x^c, start=list(a=1.16122,b=0.01565,c=1), trace=TRUE) #0.0920573 : 1.16122 0.01565 1.00000 #Error in numericDeriv(form[[3]], names(ind), env) : # Missing
2012 Oct 07
1
variances of random effects in coxme
...coxme in order to build Cox models with complex random effects. Unfortunately, I sometimes get surprising estimations of the variances of the random effects. I ran models with different fixed covariates but always with the same 3 random effects defined by the argument varlist=coxmeMlist(list(mat1,mat2,mat3), rescale = F, pdcheck = F, positive=F). I get a few times exactly the same estimations of the parameters of the random effects whereas the fixed effects of the models are different: Random effects Group Variable Std Dev Variance idp Vmat.1 0.10000000 0.01000000 Vmat.2 0.022...
2011 Apr 24
2
random roundoff?
...iplications, I have a situation in in which the result depends on the nature of nearby I/O. Thus, with all arithmetic done with type double, and where values are mostly in the range [-1.0e0,+1.0e0] or nearby, I do: cerr << "some stuff" << endl; mat3 = matmult(mat1,mat2); I get a difference of the order 1.0e-15 depending on whether the cerr line does or does not end in "endl" as shown. I am imagining that there is some "randomness" in the roundoff that depends on the I/O situation. Is this credible? Any other suggestions? Thanks for yo...
2013 May 14
0
Matrix multiplication with scattered NA values
Hi, Not sure if this is what you wanted: ?mat1<- as.matrix(read.table(text=" ????? 33??????? 45??? 50 ????? NA?????? NA?? 54 ",sep="",header=FALSE)) mat2<- as.matrix(read.table(text=" 24??????????????? 0.0000000??????? 0.0000000 0.0000000??????? 14??????????????? 0.0000000 0.0000000 0.0000000??????? 10 ",sep="",header=FALSE)) ?mat1%*%mat2 ?# ??? V1? V2? V3 #[1,] 792 630 500 #[2,]? NA? NA? NA library(Matrix) mat1m<- as(mat1...
2008 Jan 02
0
3 commits - libswfdec/swfdec_movie.c test/trace
...0 @@ swfdec_movie_render (SwfdecMovie *movie, cairo_t *cr, cairo_pattern_t *mask; if (movie->parent == movie->masked_by->parent) { cairo_transform (cr, &movie->inverse_matrix); + rect = *inval; } else { - cairo_matrix_t mat; + cairo_matrix_t mat, mat2; swfdec_movie_local_to_global_matrix (movie, &mat); + swfdec_movie_global_to_local_matrix (movie->masked_by, &mat2); + cairo_matrix_multiply (&mat, &mat2, &mat); cairo_transform (cr, &mat); - swfdec_movie_global_to_local_matrix (movie->mask...
2004 Apr 12
2
fractal calculation using fdim
.... e.g print(dim(mat)) fd <- fdim(mat,q=2) [1] 2743 2 [1] 2742 3 [1] 2741 4 [1] 2740 5 [1] 2739 6 [1] 2738 7 [1] 2737 8 [1] 2736 9 [1] 2735 10 [1] 2734 11 [1] 2733 12 Error in slopeopt(AllPoints, Alpha) : Object "LineP" not found if I change the data set to mat2 with totally different values I would get the above error at a dim(mat) of say 2693 52 thanks for any input.
2007 Jan 18
0
fitCopula method in R
-- Hello, I am attempting to fit monthly stock returns to possible copula functions using the copula package in R. Below is my code (mat2 is a 2x119 matrix of the two stock returns): my.cop <- normalCopula(param=.3, dim = 2, dispstr = "un") myfit <- fitCopula(mat2,my.cop, start=.65, optim.control= list(NULL), method = "BFGS") myfit Unfortunately, I continue to receive this error: Error in optim(start, log...
2013 Jun 05
2
combining two different matrizes
Hello together, this is ma first post, so please aplogize me if post this in the wrong section. I have problem concerning ma two matrizes. After a regressione and so on, I got two matrizes Matrixres contains the results of ma calculation. Matrixr contains my detiene, which where Aldo used for the regression. Please ser the following code: #Datei einlesen residual =
2009 Aug 10
2
strsplit a matrix
Dear all, I am trying to split a matrix into 2 as efficiently as possible. It is a character matrix: 1 2 3 1 "2-271" "2-367" "1-79" 2 "2-282" "2-378" "1-90" 3 "2-281" "2-377" "1-89" I want to make 2 matrices from this, as succinctly and efficiently as possible. I've tried such
2010 Aug 03
4
Need help on upper.tri()
HI, I am really messing up to make a symmetrical matrix using upper.tri() & lower.tri() function. Here is my code:   > set.seed(1) > mat = matrix(rnorm(25), 5, 5) > mat            [,1]       [,2]       [,3]        [,4]        [,5] [1,] -0.6264538 -0.8204684  1.5117812 -0.04493361  0.91897737 [2,]  0.1836433  0.4874291  0.3898432 -0.01619026  0.78213630 [3,] -0.8356286  0.7383247
2011 May 18
1
Need expert help with model.matrix
...e email in the function model.matrix2: contr.identity <- contr.treatment formals(contr.identity)$contrasts <- FALSE contrasts <- contrasts formals(contrasts)$contrasts <- FALSE However, I believe this function is using contrasts = TRUE, as it doesn't return the identity contrasts mat2 <- model.matrix2(~ a + b, dd) Any help here is much appreciated. Axel. ----------------------------------------------------------------------------- model.matrix2 <- function (object, data = environment(object), contrasts.arg = NULL, xlev = NULL, ...) { t <- if (missing(data))...
2012 Sep 14
0
problem with user defined panel function in xyplot
...) ?ts01 <- ts00[,1] bl <- coredata(ts01)[1] y2 <- rep(bl, length(ts01)) ymin <- min(coredata(ts01), y2) ? #vertices for area under y1 mat1 <- cbind(c(index(ts01)[1], index(ts01), index(ts01)[length(index(ts01))]), c(ymin, coredata(ts01), ymin)) ? #vertices for area under y2 mat2 <- cbind(c(index(ts01)[1],index(ts01), index(ts01)[length(index(ts01))]), c(ymin, y2, ymin)) ? pp2 <- as(mat2, "gpc.poly") pp1 <- as(mat1, "gpc.poly") ? m <-max( (max(coredata(ts01)) - bl)/3, abs(min(coredata(ts01)) - bl)/3) m1 <- bl+m m2 <- bl+2...
2013 Mar 18
4
Why stacking rasters return NAs?
I have several rasters that I want to do some calculations ,basically calculating the moving average. dir2 <- list.files("D:\\2010+2011", "*.bin", full.names = TRUE) saf=stack(dir2) movi <- overlay(stack(saf),fun=function(x) movingFun(x, fun=mean, n=3, na.rm=TRUE)) Error in .overlayList(x, fun = fun, filename = filename,
2007 Mar 25
1
anova-interaction
HI, I am trying to perform ANOVA with 2 factors: material (3), temperature(3). The interaction is significant. I tried something like, ( summary(avt, split=list("temp:mat"=list("15"=1, "70"=2, "125"=3))) is not correct). Thanks, av <- aov(time ~ mat*temp, data=dados) avt <- aov(time ~ temp/mat) summary(avt,
2009 Feb 13
0
Wine release 1.1.15
...te file. localspl: Move provider functions to a seperate file. winspool: Move EnumPortsW to the backend. spoolss: Implement EnumMonitors. comctl32/tests: The status control use a different formula in XP and up for the height. Dmitry Timoshkov (6): winex11.drv: The MAT2 parameter of GetGlyphOutline is mandatory. wineps.drv: The MAT2 parameter of GetGlyphOutline is mandatory. gdi32: The MAT2 parameter of GetGlyphOutline is mandatory. gdi32: Add a test for the MAT2 parameter of GetGlyphOutline, make it pass under Wine. mlang: Get rid of ICOM_...
2006 Feb 28
2
vector math: calculating a rolling 12 row product?
I have a dataframe of numeric values with 30 ?rows? and 7 ?columns?. For each column, beginning at ?row? 12 and down to ?row? 30, I wish to calculate the ?rolling 12 row product?. I.e., within each column, I wish to multiply all the values in row 1:12, 2:13, 19:30. I wish to save the results as a new dataframe, which will have 19 rows and 7 columns.
2009 Feb 06
0
RExcel waiting for OLE action
..., send-to-R, run R, retrieve-from-R macro. Call Rinterface.StartRServer Call Rinterface.RRun("rm(list = ls())") Call Rinterface.RRun("dev.off()") Call Rinterface.PutArray("mat1", Range("DATA_INPUT_OUTPUT!B7:I506")) Call Rinterface.PutArray("mat2", Range("DATA_INPUT_OUTPUT!J7:Q506")) Call Rinterface.PutArray("cpd", Range("DATA_INPUT_OUTPUT!A7:A506")) Call Rinterface.PutArray("name_of_assay_one", Range("DATA_INPUT_OUTPUT!B1")) Call Rinterface.PutArray("name_of_assay_two...
2010 Aug 25
3
approxfun-problems (yleft and yright ignored)
Dear all, I have run into a problem when running some code implemented in the Bioconductor panp-package (applied to my own expression data), whereby gene expression values of known true negative probesets (x) are interpolated onto present/absent p-values (y) between 0 and 1 using the *approxfun - function*{stats}; when I have used R version 2.8, everything had worked fine, however, after