similar to: Optimization algorithm to be applied to S4 classes - specifically sparse matrices

Hello. I am trying to invert a matrix, and I am finding that I can get different answers depending on whether I set LAPACK true or false using "qr". I had understood that LAPACK is, in general more robust and faster than LINPACK, so I am confused as to why I am getting what seems to be invalid answers. The matrix is ostensibly the Hessian for a function I am optimizing. I want to get

Hello. I seem to be having the same problem that Paul had in the thread titled "[Rd] R 2.15.2 make check failure on 32-bit --with-blas="-lgoto2"" from October of last year <https://stat.ethz.ch/pipermail/r-devel/2012-October/065103.html> Unfortunately, that thread ended without an answer to his last question. Briefly, I am trying to compile an Rblas for Windows NT 32bit

Hi, I have sparse (tridiagonal) matrices, and I use the Matrix package for handling them. For certain computations, I need to either set the first row to zero, or double the last row. I find that neither operation preserves sparsity, eg > m <- Diagonal(5) > m 5 x 5 diagonal matrix of class "ddiMatrix" [,1] [,2] [,3] [,4] [,5] [1,] 1 . . . . [2,] . 1

Using the Matrix package, how can I create a row-oriented sparse Matrix from scratch populated with some data? By default a column-oriented one is created and I'm aware of the note that the package is optimized for column-oriented ones, but I'm only interested in using it for holding my sparse row-oriented data and doing basic subsetting by rows (even using drop=FALSE). Here is what I

>>>>> Henrik Bengtsson <henrik.bengtsson at gmail.com> >>>>> on Tue, 19 Apr 2016 14:04:11 -0700 writes: > Using the Matrix package, how can I create a row-oriented sparse > Matrix from scratch populated with some data? By default a > column-oriented one is created and I'm aware of the note that the > package is optimized for

Hello, I am working with a sparse matrix that is approx. 13,900 by 14,100. My goal is to select a row out of the matrix and create a new matrix with that row repeated 13,900 times without having to do any looping. Example: Starting Matrix: exampleMatrix 3 x 4 sparse Matrix of class "dgCMatrix" [1,] 1 . . . [2,] . 1 . 0.5 [3,] . . 1 .. New Matrix:.. newExampleMatrix 3 x 4 sparse

On Wed, Mar 11, 2015 at 1:40 AM, Hsiu-Khuern Tang <tangoh at gmail.com> wrote: > On Tue, Mar 10, 2015 at 8:54 PM, Avraham Adler <avraham.adler at gmail.com> wrote: >> >> I successfully rebuilt R-devel_2015-03-09 with the most recent version >> of Rtools tonight, building both ICU_531 and this time libcurl (7.39) >> as well (and OpenBLAS, of course). The

On Wed, Mar 11, 2015 at 1:23 PM, Hsiu-Khuern Tang <tangoh at gmail.com> wrote: > On Tue, Mar 10, 2015 at 10:47 PM, Avraham Adler <avraham.adler at gmail.com> wrote: >> On Wed, Mar 11, 2015 at 1:40 AM, Hsiu-Khuern Tang <tangoh at gmail.com> wrote: >>> On Tue, Mar 10, 2015 at 8:54 PM, Avraham Adler <avraham.adler at gmail.com> wrote: >>>>

On Tue, Jan 31, 2017 at 3:30 PM, peter dalgaard <pdalgd at gmail.com> wrote: > >> On 31 Jan 2017, at 18:56 , Avraham Adler <avraham.adler at gmail.com> wrote: >> >> Hello. >> >> When trying to unpack today's version of R-patched, > > From which source? The files from cran.r-project.org seems OK, both those in src/base-prerelease and those from

This is a Request For Comment, also BCCed to 390 package maintainers of reverse dependencies of the Matrix package. Most users and package authors working with our 'Matrix' package will be using it for numerical computations, and so will be using "dMatrix" (d : double precision) matrix objects M, and indirectly, e.g., for M >= c will also use "lMatrix" (l:

On Tue, Sep 1, 2015 at 10:57 AM, peter dalgaard <pdalgd at gmail.com> wrote: > > On 01 Sep 2015, at 16:21 , Avraham Adler <avraham.adler at gmail.com> wrote: > >> Hello. >> >> There used to be changelog of sorts for R-devel [1] and R-release [2]. >> Neither have been updated since 2015-07-24. Have these moved >> elsewhere, or are they no longer

Hello. There used to be changelog of sorts for R-devel [1] and R-release [2]. Neither have been updated since 2015-07-24. Have these moved elsewhere, or are they no longer being updated? Thank you, Avi [1] <http://developer.r-project.org/blosxom.cgi/R-devel/NEWS> [2] <http://developer.r-project.org/blosxom.cgi/R-3-2-branch/NEWS>

Hello. This is not a question about a bug or even best practices; rather I'm trying to understand the philosophy or theory as to why certain portions of the R codebase are written as they are. If this question is better posed elsewhere, please point me in the proper direction. In the thread about the issues with the Tukey line, Martin said [1]: > when this topic came up last (for me) in

Hello. When trying to unpack today's version of R-patched, I get the following error: C:\R>tar -xf R-patched_2017-01-30.tar.gz gzip: stdin: unexpected end of file tar: Unexpected EOF in archive tar: Unexpected EOF in archive tar: Error is not recoverable: exiting now I got the same error for R-patched_2017-01-30.tar.gz but not for R-3.3.2.tar.gz. Thank you, Avi

I am able to create a coordinate list sparse matrix this way: r = c(1,2,2,3,3) c = c(4,1,2,3,5) v = c(1,2,1,3,1) a = sparseMatrix(i=r,j=c,x=v) However, this results in an object that looks like this: a 3 x 5 sparse Matrix of class "dgCMatrix" [1,] . . . 1 . [2,] 2 1 . . . [3,] . . 3 . 1 How do I convert this object into a data.frame that would look like this:

On Tue, Mar 10, 2015 at 3:17 PM, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > > That's a bug. I haven't tracked down what's going wrong with our > regular code. If I can't find that and fix it soon, I'll make Internet2 > the default. For now, you can do it yourself using the instructions on > ?setInternet2. > > Duncan Murdoch I

I am working on compiling R-3.6.0 for Windows 10 64bit using rtools40 (beta 11). I had also installed the most recent update of Inno setup, which is now 6.0.2.With that version, `make risntaller` fails at the call to ""C:/R/Inno/iscc" R.iss > R-3.6.0.log 2>&1" and just exits, pointing to line 175 of the makefile which is: $(RPREFIX)-win.exe: R.iss

I believe that repo just follows the directions on my blog. Without seeing Dr. Hodges?s code, my initial concern is the many references to Cygwin. My method specifically does not use Cygwin but MSYS2 and Mingw64/Rtools35. That will likely change to solely Rtools40 once R3.6 is released due to the Msys system being built in to it. There may be some library conflicts between Cygwin and

Hello. I have successfully built R on windows scores of times, and have never come across this problem. For this build, I am using the current 4.6.3 prerelease version of Rtools, Windows7 64 bit, and R-devel_2015-09-14.tar.gz When running make check, I get the following error: running code in 'reg-packages.R' ...make[3]: *** [reg-packages.Rout] Error 1 make[2]: *** [test-Reg] Error 2

Hello. When trying to compile R-3.0.2 on Windows 7 64bit, I get an error relating to "alone_decoder.c: Permission denied." The entire error code is copied below. gcc -std=gnu99 -m64 -shared -o Riconv.dll Riconv.def win_iconv.o touch stamp gcc -std=gnu99 -m64 -I../../include -I. -Iapi -DLZMA_API_STATIC -DHAVE_CONFIG_H -DWIN32 -O3 -Wall -pedantic -march=core-avx-i -O3 --param