similar to: L(x,y,t)?

Displaying 20 results from an estimated 9000 matches similar to: "L(x,y,t)?"

2004 May 14
5
Tagging identical rows of a matrix
I would like to generate a vector having the same length as the number of rows in a matrix. The vector should contain an integer indicating the "group" of the row, where identical matrix rows are in a group, and a unique row has a unique integer. Thus, for a <- c(1,2) b <- c(1,3) c <- c(1,2) d <- c(1,2) e <- c(1,3) f <- c(2,1) mat <- rbind(a,b,c,d,e,f) I would
2005 Oct 10
1
using innov in arima.sim
Hello, I have used the arima.sim function to generate a lot of time series, but to day I got som results that I didn't quite understand. Generating two time series z0 and z1 as eps <- rnorm(n, sd=0.03) z0 <- arima.sim(list(ar=c(0.9)), n=n, innov=eps) and z1 <- arima.sim(list(ar=c(0.9)), n=n, sd=0.03), I would expect z0 and z1 to be qualitatively similar. However, with n=10 the
2003 Jul 14
2
Subsetting a matrix
I'd welcome some comments or advice regarding the situation described below. The following illustrates what seems to me to be an inconsistency in the behaviour of matrix subsetting: > Z<-matrix(c(1.1,2.1,3.1,1.2,2.2,3.2,1.3,2.3,3.3),nrow=3) > Z [,1] [,2] [,3] [1,] 1.1 1.2 1.3 [2,] 2.1 2.2 2.3 [3,] 3.1 3.2 3.3 > dim(Z) [1] 3 3 >
2006 Sep 01
1
integration problem with gamma function
Dear R-list members, I have a problem with translating a mathematica script into R. The whole script is at the end of the email (with initial values for easy reproduction) and can be pasted directly into R. The problematic part (which is included below of course) is <--- Original Mathematica ---> (* p_svbar *) UiA = Ni (Dsi - 2Di A + A^2)/2; UiiA = Nii (Dsii - 2Dii A + A^2)/2; psvbar =
2011 Sep 07
1
Very slow assignments
I'm creating an object of a S4 class that has two slots: ListExamples, which is a list, and idx, which is an integer (as the code below). Then, I read a data.frame file with 10000 (ten thousands) of lines and 10 columns, do some pre-processing and, basically, I store each line as an element of a list in the slot ListExamples of the S4 object. However, any kind of assignment operation (<-)
2011 Jul 20
3
select element from each row of the matrix
I have a 5 column matrix like 12 10 8 6 3 10 9 8 7 5 14 NA 4 NA NA NA 15 NA 10 NA 5 ... I want to select the position of the first entry for each row <=5 for example, for the first row, I want to select the last element and return its position as 5; for th e third row, I want to select the third element and return its position as 3; similarly for the 4th row, I want to select the fifth
2019 Dec 11
3
Weird update_llc_test_checks behavior?
I've run update_llc_test_checks on a set of tests and am seeing some weird behavior. The CHECK lines appear directly after the function's first line, even if there are multiple arguments. E.g.: define <vscale x 4 x i32> @sel_nxv4i32(<vscale x 4 x i1> %p, ; CHECK-LABEL: sel_nxv4i32: ; CHECK: // %bb.0: ; CHECK-NEXT: mov z0.s, p0/m, z1.s ; CHECK-NEXT: ret
2004 Feb 10
2
How to compute the minimal distanct between a point and curve in N-dim space
Dear All, In the N-dimensional space, give a data point A and a curve f, how to write the explicit expression for calculating the minimal distance between A and f? Or have to use some nonlinear optimization method to calcualte it? Thanks for your point. Fred [[alternative HTML version deleted]]
2010 Nov 29
2
Significance of the difference between two correlation coefficients
Hi, based on the sample size I want to calculate whether to correlation coefficients are significantly different or not. I know that as a first step both coefficients have to be converted to z values using fisher's z transformation. I have done this already but I dont know how to further proceed from there. unlike for correlation coefficients I know that the difference for z values is
2014 Jul 09
3
error com un archivo
Hola a todos, Me gustaria pedir vuestra ayuda a encontrar el error que no consigo encontrar en este archivo. He revisado todo mil veces y probado y no doy con ello.Adjunto el archivo con Google drive porque es muy grande. ? monicap_50.csv <https://docs.google.com/file/d/0B8o2KrPEgG7ATlBMc19lTVk1d3M/edit?usp=drive_web> ? Este es el script, y lo que no entiendo que pasa es que tengo 592044
2004 Oct 11
1
Bug#275946: Acknowledgement (newline not recognized when logcheck sends emails)
I upgraded to 1.2.28, same results. Here are the rules I added. ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ perdition\[[0-9]+\]: Connect: ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ pure-ftpd: [^[:space:]]+ \[NOTICE\] ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ pure-ftpd: [^[:space:]]+ \[INFO\] ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ exact\[[0-9]+\]: ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ slapd\[[0-9]+\]: ^\w{3} [ :0-9]{11}
2012 Jun 12
4
How do I connect dots in the RGL package?
Hi all, I just started using the rgl package in R, and I need to know how I connect the dots I created. A simple line from one co?rdinate (x0,y0,z0) to another (x1,y1,z1) will do. I tried using the code rgl.lines, but it doesn't accept lines that don't stem from O (0,0,0). Please help! Thanks! -- View this message in context:
2005 Dec 12
2
More floating point errors
Hi! It seems that using a different compiler (I assume the development is done with MSC) uncovers various issues with the floating point. Here is the second one I'm seeing - DOMAIN error from sqrt(). In the open_loop_nbest_pitch(), this line: g = DIV32(corr[i-start], 10+SHR32(MULT16_16(spx_sqrt(e0),spx_sqrt(energy[i-start]) ),6)); The values are: e0 is 7.2 i is 142, start is 17
2012 Apr 03
1
object of type 'S4' is not subsettable
hey there! The object 'cit' contains: > cit ##################################################### # Johansen-Procedure Unit Root / Cointegration Test # ##################################################### The value of the test statistic is: 5.3484 9.0681 10.6433 --------------- I want R to save the value 5.3484 in a new object. I am used to use the command x=cit[a] where a
2013 Feb 18
2
error: Error in if (is.na(f0$objective)) { : argument is of length zero
Dear all, I tried running the following syntax but it keeps running for about 4 hours and then i got the following errors: Error in if (is.na(f0$objective)) { : argument is of length zero In addition: Warning message: In is.na(f0$objective) : is.na() applied to non-(list or vector) of type 'NULL' Here is the syntax itself: library('nloptr') library('pracma') #
2018 Sep 28
3
error: expected memory with 32-bit signed offset
Hi, I want to encode Loongson ISA initially https://gist.github.com/xiangzhai/8ae6966e2f02a94e180dd16ff1cd60ac gslbx           $2,0($3,$4) It is equivalent to: dadd $1, $3, $4 lb $2,0($1) I just use  mem_simmptr  as the default value of  DAGOperand MO , because  MipsMemAsmOperand  use  parseMemOperand  to parse general  MemOffset  and only *one*  AnyRegister , for example: 0($1) But 
2016 Nov 25
2
[RFC] Supporting ARM's SVE in LLVM
Hi Graham, I'll look into the patches next, but first some questions after reading the available white papers on the net. On 24 November 2016 at 15:39, Graham Hunter <Graham.Hunter at arm.com> wrote: > This complex constant represents the runtime value of `n` for any scalable type > `<n x m x ty>`. This is primarily used to increment induction variables and > generate
2010 Jul 07
3
Large discrepancies in the same object being saved to .RData
Hi developers, After some investigation I have found there can be large discrepancies in the same object being saved as an external "xx.RData" file. The immediate repercussion of this is the possible increased size of your .RData workspace for no apparent reason. The function and its three scenarios below highlight these discrepancies. Note that the object being returned is exactly
2017 Jan 17
32
[PATCH 0/6] drm/nouveau: Enable HDMI Stereoscopy
This is an initial implementation of HDMI 3D mode support for the nouveau kernel driver. It works on all of the hardware that I have available to test at the moment, but I am unsure as to the overall approach taken for setting HDMI InfoFrames, there's no support for g84 or gf119 disps, and the criteria for enabling stereo support for an output seems a bit iffy. The first four patches arrange
2015 Feb 28
2
[LLVMdev] LLVM register number for MIPS DAGToDAG
Thanks for your reply Quentin. I do understand that the registers are allocated much later in the pipeline. I am assuming that the physical registers are allocated before MipsAsmPrinter class. I am doing something like if (MI->getOpcode() == Mips::OPCODE) { unsigned n = MI->getNumOperands(); for(unsigned i=0 ; i < n ; i++) { const MachineOperand &MO =