similar to: Followup on quadprog installation

When I try to build/install the quadprog package under R1.50 and NT4 it seems to have trouble finding blas routines. I'm currently using the generic blas routines, rather than ATLAS or some other tuned implementation: > Rcmd INSTALL d:/temp/quadrprog ... gcc --shared -s -o quadprog.dll quadprog.def quadprog.a quadprog_res.o -Lc:/a pps/rw1050/src/gnuwin32 -lg2c -lR

Please pardon a novice use question. Is there any way under the Win32 version of R (1.3.0) to change the working directory from the GUI command line? I see the "Change dir" entry under the File menu, but haven't found a corresponding command. Thanks in advance, -jh- ========================================= John M. Heumann, Agilent Technologies 815 14th St. S.W., Loveland, CO

"An Introduction to R" says that arithmetic operators coerce logical vectors to numeric vectors. This doesn't seem to be true for unary "-" however: > x <- 1:10 > p1 <- (x > 5) > p2 <- (-p1) > is.logical(p2) [1] TRUE > is.numeric(p2) [1] FALSE Since "==" always does binary comparison, this can lead to some bizarre behavior: > p1

The documentation for sample() describes the optional "prob" argument as "A vector of probabilities of obtaining the elements of the vector being sampled". Both run time behavior and source code (routine FixupProb) suggest that "prob" can be a vector of non-negative, relative weights (i.e. not necessarily normalized). Should the help be updated to reflect this?

In the windows version of R (1.3.0) is the following a bug, a known problem, or expected behavior: > for (i in 1:2) { + for (j in i+1:3) { + print(j) + } + } [1] 2 [1] 3 [1] 4 ???? [1] 3 [1] 4 ???? [1] 5 ???? > Conversely, the following behaves as expected: > for (i in 1:2) { + k <- i+1 + for (j in k:3) { + print(j) + } + } [1] 2 [1] 3 [1] 3 >

Under NT with 1.3.1 if (x == 1) { cat("Saw x=1\n"); } else { cat("Saw x!=1\n"); } works as expected, but if (x == 1) { cat("Saw x=1\n"); } else { cat("Saw x!=1\n"); } is currently giving me a syntax error on the "else" line. Apparently the parser considers the if statement to have ended as soon as it sees first closing brace, unless

RPART doesn't seem to handle the degenerate case when all training samples are drawn from a single class: > TrainType [1] 0 0 0 0 > TrainDat V1 V2 V3 V4 V5 1 0.6434392 0.5105860 0.3048803 0.3161728 0.5449632 2 0.1710005 0.5973921 0.1267061 0.6146834 0.7299928 3 0.6919125 0.8880789 0.9123243 0.9061885 0.9553663 4 0.3094843 0.6475508

Something strange is happening with update.packages on my machine (Win2000, R-1.5.0 installed from binaries). Some of the packages (see below) keep getting updated every time. When I issue update.packages() I get this every time for the last few days (I think since I installed 1.5 and the packages but I am not sure). This happens with CRAN shown below and also with CRAN set to

Dear helpers! I tried to build a package I have written, and which I have built up to now under R v .1.2.1, Windows 98 and Cygwin. The plan is to migrate to R v 1.5.0, Windows 2000 and Rtools. The package fits the decription of Simple Ports in readme.packages. The command C:\R\rw1050\src\gnuwin32>make pkg-sag gave the output make DLLNM= \ -C C:/R/rw1050/src/library/sag PKG=sag

I forgot to attach the problem data, 'quadprog.Rdata' file, in my prior email. I want to report a following error with quadprog. The solve.QP function finds a solution to the problem below that violates the last equality constraint. I tried to solve the same problem using ipop from kernlab package and get the solution in which all equality constraints are enforced. I also tried an old

Hello to everybody, I have a quadratic programming problem that I am trying to solve by various methods. One of them is to use the quadprog package in R. When I check positive definiteness of the D matrix, I get that one of the eigenvalues is negative of order 10^(-8). All the others are positive. When I set this particular eigenvalue to 0.0 and I recheck the eigenvalues in R, the last

I upgraded to R-2.2.1 on two PPC G5 computers today. Further I want to work with the tseries package for the first time. As root with R CMD INSTALL tseries_0.10-0.tar.gz I get the following gcc-3.3 -bundle -flat_namespace -undefined suppress -L/usr/local/lib - o tseries.so arma.o bdstest.o boot.o dsumsl.o garch.o ppsum.o tsutils.o -framework vecLib -L/usr/local/lib/gcc/powerpc-apple-

I'm having difficulty figuring out how to implement the following set of constraints in Quadprog: 1). x1+x2+x3+x4=a1 2). x1+x2+x5+x6=a2 3). x1+x3+x5+x7=a3 4). x1+x2=b1 5). x1+x3=b2 6). x1+x5=b3 for the problem: MIN (x1-c1)2+(x2-c2)2+...+(x8-c8)2. As far a I understand, "solve.QP(Dmat, dvec, Amat, bvec, meq=0, factorized=FALSE)" reads contraints using an element-by-element

Full_Name: Ansgar Steland Version: 0.90.0 OS: Linux 6.1 FreeBSD 3.2 Submission from: (NULL) (62.104.196.10) Dear R Team, Yesterday I downloaded R 0.90.0 and the current versions of some packages (tseries, quadprog,...). I had no problems to build the program using FreeBSD 3.2 and SuSe Linux 6.1. I also re-build all packages required by tseries. I checked out portfolio.optim (package:

I am having some problems using Quadprog in R. I want to minimize the objective function : 200*P1-1/2*10*P1^2+100*P2-1/2*5*P2^2+160*P3-1/2*8*P3^2+50*P4-1/2*10*P4^2+50*P 5-1/2*20*P5^2+50*P6-1/2*10*P6^2, Subject to a set of constrains including not only the variables P1, P2, P3, P4, P5, P6, but also the variables X1, X2,X3,X4,X5,X6,X7,X8,X9. As the set of variables X's are not

Hi list: This is my first time to post my question on the list. Thanks for your help. I am solving a quadratic programming using R. Here is my question: w = arg min 0.5*w'Mw - w'N s. t. sum(w) = 1; w>0 note: w is weight vector, each w_i must >=0, and the sum of w =1. Here is my R code: A <-matrix(c(2.26,1.26,1.12,1.12,2.27,1.13,1.12,1.13,2.2),3,3); B <-

My Rgui crashes quite a lot when entering certain characters. I put a freshly extracted msvcrt.dll into the rw1050\bin directory, but this did not fix the problem. Perhaps, as stated in the FAQ section, I need also "put the rw1050\bin directory early in your path" but I do not know how to do it in Windows Me. Please could you give me some help? E. Barahona

Hi, I'm using the package quadprog to solve the following quadratic programming problem. I want to minimize the function (b_1-b_2)^2+(b_3-b_4)^2 by the following constraints b_i, i=1,...,4: b_1+b_3=1 b_2+b_4=1 0.1<=b_1<=0.2 0.2<=b_2<=0.4 0.8<=b_3<=0.9 0.6<=b_4<=0.8 In my opinion the solution should be b_1=b_2=0.2 und b_3=b_4=0.8. Unfortunately R doesn't find

Hi everybody, I'm using Windows XP Prof, R 2.5.1 and a Pentium 4 Processor. Now, I want to solve a quadratic optimization program (Portfolio Selection) with the quadprog package I want to minimize (\omega'%*%\Sigma%*%\omega) Subject to (1) \iota' %*% \omega = 1 (full investment) (2) R'%*%\omega = \mu (predefined expectation value) (3) \omega \ge 0 (no short sales). Where

Dears users, Thanks for your responses concerning my question of yesterday (about stand-alone package). Il would like to explore two ways: -- Tcltk extension, -- Rweb application. I have installed ActiveTcl (in F:\Tcl), and I have modified the PATH (in the autoexec.bat file): set R_LIBS=F:\R\rw1050\library set PATH=%PATH%;F:\Tcl\bin set PATH=%PATH%;F:\Tcl\lib set PATH=%PATH%;F:\R\rw1050\bin