similar to: “For” calculation is so slow

Displaying 20 results from an estimated 2000 matches similar to: "“For” calculation is so slow"

2011 Nov 25
1
Multiple selection, renaming and saving the results
Dear all, I have a big data frame: str(data1) 'data.frame': 18272 obs. of 11 variables: $ tag : int 100001 100002 100003 100005 100007 100008 100009 100011 100012 100014 ... $ sp : Factor w/ 18 levels "acassp","acocar",..: 13 5 7 14 14 18 3 11 13 10 ... $ gx : num 20 10 35 68 88 63 123 115 137 136 ... $ gy : num 30 25 24 1 10 40 45 25 23 45 ...
2009 Jul 06
1
how to apply a self-written function to a data frame
Hello, I have written a function in order to analyse gaze paths. It works with the test data but when I try to apply the function to a data frame that stores "the real data" in columns I receive the error message that the " In if (pp > 1) { : condition has length > 1 only the first element will be used " I interpret this error message as saying that only the first
2007 Sep 23
2
return(x=x,y=y,prob=prob) hasn't been used in R now?
Dear friends, Now, when i use the argument return(x=x,y=y,prob=prob) , R displays the waring message: Warning message: The return value for multiple variables wasn't used in: return(x = x, y = gy, prob = prob) I used the methods of "help.search("return")" and "?return" to get some help, but didn't find info on it. Anybody knows how it should be used
2006 Jun 14
1
Estimate region of highest probabilty density
Estimate region of highest probabilty density Dear R-community I have data consisting of x and y. To each pair (x,y) a z value (weight) is assigned. With kde2d I can estimate the densities on a regular grid and based on this make a contour plot (not considering the z-values). According to an earlier post in the list I adjusted the kde2d to kde2d.weighted (see code below) to estimate the
2011 Feb 15
1
gList and gTree methods of grid::grobX
Dear all, In an attempt to draw fill patterns in grid graphics, I have encountered a behavior of grobX that I cannot understand from the documentation. Consider this, library(grid) ## gTree g1 <- gTree(children=gList( rectGrob(0.5,0.5, width=unit(0.8,"npc"), height=unit(2,"cm")), circleGrob(r=0.3)), vp=viewport(0.5,0.5)) ##
2009 Jun 26
1
gradient fill of a grid.polygon
Dear list, Following a recent enquiry, I've been playing with the idea of creating a colour gradient for a polygon, using the Grid package. The idea is to draw a number of stripes of different colours, using the grid.clip function. Below is my current attempt at this, library(grid) rotate.polygon <- function(g, angle=0){ # utility function, works fine matR <- matrix(c(cos(angle),
2006 May 24
0
the computation of exact p-value for the nonparametric cor-test with ties
Hello, I wuold like to propose my modifications of the original cor.test to you : I tried to calcolate the correct p-value for Spearman and Kendall's test with ties. Let me know what you think. Thanks you for your time. Antonietta di Salvatore test <- function(x, ...) UseMethod("test") test.default <- function(x, y, alternative = c("two.sided",
2004 Dec 22
0
weighted kernel density estimation
Dear wizaRds, I use the MASS::kde2d function to estimate density of the two first principal components. I do that to have a graphic visualisation of a "group structure" in my dataset. So far, no problem. But i would like to estimate that density using weights according to the COS?? values that tells me if my observation is well represented on the factorial plan 1-2. I would like to
2010 Feb 15
4
density estimates for fixed points
Problem: Based on a n x 2 data matrix i want a kernel estimate of the bivariate density. However, i also wish to specify wich points the density should be calculated at. I can offcourse just write the full kernel density estimate as a R-code, but surely there must already exist some package for this operation? The package density(), seems to create a new matrix (depending on n), where the
2006 Jan 19
2
function kde2d
Good evening, I am Marta Colombo, student at Milan's Politecnico. Thank you very much for your kindness, this mailing list is really useful. I am using the function kde2d for two-dimensional kernel density estimation and I'd like to know something more about this kind of density estimator. In particular I'd like to know: what bandwidth is used ? Thank you in advance for your attention
2013 May 28
0
[LLVMdev] unexpectedly loop hanging
As an update, it is a memory problem which I don't know how to fix. I tried to skip the problematic piece of code when in the case when the loop hangs. So I did something like : if( instr ) { LLVMContext& C = instr->getContext(); Value* values[cnt]; errs()<<"\ngy: \n"; if(!(desters==7)){ // this
2013 May 28
1
[LLVMdev] unexpectedly loop hanging
Hi, I don't know much about this issue, but this malloc error won't be solved by a change to delete[] or free. In fact, if you use the incorrect one for simple types, you may not notice it. The error you have seems to me like a memory corruption because you went out of bound and corrupted the memory somewhere, Valgrind may help you figure out what is going on. Cheers, Matthieu
2013 May 28
3
[LLVMdev] unexpectedly loop hanging
Hello everyone, I was able to get all the execution paths between 2 points (basic blocks) in my program (with the condition to traverse a loop only once). I mapped all the basic blocks to integers and created a correspondent directed graph. I was able to get all the paths (a path is represented by an integer identifier). For my target program I have 72 paths, but the program hangs unexpectedly
2013 May 03
0
[LLVMdev] set of integers to metadata
I also tried the following, with no compilation errors, but segfault, core dumped: *LLVMContext& C = is->getContext(); Value* values[size]; for(int gy=0;gy<size;gy++){ values[gy]=ConstantInt::getSigned(Type::getInt64Ty(C),array[gy]); } llvm::ArrayRef<Value*> bla = values[size]; is->setMetadata("path",MDNode::get(C,bla));* On Fri, May 3, 2013
2013 May 03
2
[LLVMdev] set of integers to metadata
Hello everyone, I want to pass a set of integers using metadata but I don't know how. I have tried: the integers are in array[] *1. * LLVMContext& C = is->getContext(); Value* values[size]; for(int gy=0;gy<size;gy++){ values[gy]=ConstantInt::getSigned(Type::getInt64Ty(C),array[gy]); } *is->setMetadata("path",MDNode::get(C,values));* failes when setMetadata(),
2013 Mar 23
0
[LLVMdev] About commit TILE-Gx backend to community repository and default disabled
于 2013/3/24 0:07, Joerg Sonnenberger 写道: > On Sat, Mar 23, 2013 at 04:59:49PM +0100, Tobias Grosser wrote: >> With Chris's reply you also got the general OK to upstream the >> patch, _AFTER_ the actual patches have been reviewed. > One thing I was asking on IRC for is whether it makes sense for new > backends to be committable in incremental steps. Especially for a >
2006 Jul 28
3
random effects with lmer() and lme(), three random factors
Hi, all, I have a question about random effects model. I am dealing with a three-factor experiment dataset. The response variable y is modeled against three factors: Samples, Operators, and Runs. The experimental design is as follow: 4 samples were randomly chosen from a large pool of test samples. Each of the 4 samples was analyzed by 4 operators, randomly selected from a group of
2013 Mar 01
2
[LLVMdev] RFC: TileGX, a new backend for Tilera's many core processor
Hi, On behalf of Tilera Corporation, I'd like to contribute llvm ports to Tilera's TILE-Gx architecture and wish this could be submitted to main llvm tree. TILE-Gx is a VLIW architecture with 64-bit registers, 64-bit address space, and 64-bit instructions. TILE-Gx has load-store architecture ISAs. More information on the architectures is available at
2013 Feb 26
5
Glassfish automatic installation in Puppet
Hi All, Can any one help to install my jar file automatically, When I tried to install /usr/bin/java -Xmx256m -jar /gx/mnt/software/Vidispine/Components/glassfish-installer-v2.1.1-b31g-linux.jar,its is asking for confirmation like Accept or Decline? [A,D,a,d]. So how can I pass answer with command. Please find my puppet code below exec { ''glassfishInstaExe'':
2002 Oct 12
1
reshape
I'd like to convert a data.frame from (long format): gen maxh resp 1 12.3 y . . . . . . where resp is a factor with levels "y" and "n" to the wide format: gen maxh.y maxh.n . . . . . . I've done it as follows: maxh.y <- split(maxh, resp)$y gy <- split(gen, resp)$y yes <-