similar to: non-negative least squares?

Displaying 20 results from an estimated 4000 matches similar to: "non-negative least squares?"

2001 Nov 20
0
Summary: non-negative least squares
Thank you Brian Ripley, Gardar Johannesson, and Marcel Wolbers for your prompt and friendly help! I will share any further learnings as I move through these suggestions. -Bob Abugov Brian Ripley wrote: I just use optim() on the sum of squares with non-negativity constraints. That did not exist in 1999. Gardar Johannesson wrote: You can always just use the quadratic programing library in R
2006 Jul 14
1
SAS to R translator for particular procedures
Dear /Bill Paterson, while trying to find a way to convert SAS code into R, I came across your one time e-mail message (http://www.ens.gu.edu.au/robertk/R/help/99b/0908.html). I'd appreciate to learn if anything came out of this, or any suggestions. Thank you in advance, Mehmet Somel / -- Mehmet Somel Max Planck Institute for Evolutionary Anthropology Department of Evolutionary
2004 Mar 01
1
non-negative least-squares
Hi all, I am trying to do an inversion of electromagnetic data with non-negative least squares method (Tikhonov regularisation) and have got it programmed in S-Plus. However I am trying to move all my scripts from S-Plus to R. Is there an equivalent to nnls.fit in R? I think this can be done with pcls? Right? S-Plus script: A, L and data are matrices, lambda is a vector of possible lambda
2000 Feb 08
1
gnome support failure (libglade error on debian)
Hi, I'm running debian - upgraded fully to potato at the start of the freeze and added latest libgnome-dev before configuring. I tried compiling with gnome support with /usr/local/R/R-0.99.0/configure --with-gnome and got the following output: checking for gnome-config... /usr/bin/gnome-config checking if /usr/bin/gnome-config works... yes checking for orbit-config...
2006 Jul 11
3
least square fit with non-negativity constraints for absorption spectra fitting
I would really appreciate it if someone can give suggestions on how to do spectra fitting in R using ordinary least square fitting and non-negativity constraints. The lm() function works well for ordinary least square fitting, but how to specify non-negativity constraints? It wouldn't make sense if the fitting coefficients coming out as negative in absorption spectra deconvolution. Thanks.
2018 Apr 11
7
[Bug 105977] New: Samsung screen replacement in a Dell laptop brings corrupted display
https://bugs.freedesktop.org/show_bug.cgi?id=105977 Bug ID: 105977 Summary: Samsung screen replacement in a Dell laptop brings corrupted display Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: critical Priority: medium
1997 Jul 31
1
R-beta: R-help archives in html format
Archives of the r-help mailing list are now available in html format at: http://www.ens.gu.edu.au/robertk/rhelp/about.htm The archives include R-help and the previous R-testers lists back to March 1996. ---- Robert King, || The Society for the Preservation of Tithesis commends your Environmental|| ebriated and scrutable use of "delible" and "defatigable", Science, ||
2000 Dec 07
1
Reversing x-axis
Dear all, I'm making a system to create a star-chart, and I have encountered one of the intuitive and clearly thoughtful conventions that are so common in astronomy :-J... Well, the point being, I have to reverse the x-axis. I figured, I might just set xlim=rev(range(x)). Do e.g. > x <- 0:5 > y <- (0:5)^3 > plot(x, y) > plot(x, y, xlim=rev(range(x))) The problem is that here
1999 Nov 08
2
archive of the mailing list?
Is there an archive of the mailing list? If so could someone please give the site address? Jan -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at
1999 Jun 15
3
r help archives
Where are the archives of r-help kept, please? Jonathan -- Dr. Jonathan Myles e-mail:jonathan.myles at mrc-bsu.cam.ac.uk MRC Biostatistics Unit Tel. 01223 330371 Institute of Public Health FAX 01223 330388 University Forvie Site Robinson Way CAMBRIDGE CB2 2SR -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list --
2012 Jan 04
0
Non Negative Least Squares Regression with nnls
Hello R experts, I have two questions related to the nnls library (http://www.inside-r.org/packages/cran/nnls), and more broadly to linear regression with positive coefficients. Sample code is below the Qs. Q1: Regular regression (with lm) gives me the significance of each variable. How do I get variable significance with nnls? If there's no ready function, any easy way to manually derive
2006 Feb 02
0
Computing s^2 for non-negative least squares.
I know this isn't 100% an R question, but... I have successfully used optim to compute a non-negative regression and would like to compute standard errors for the non-negative coefficients. How do I do this? Also, are there any references where I can read up on the theory. Thanks. --Brett [[alternative HTML version deleted]]
2001 Jun 08
2
Will R run in Batch mode?
A quick newbie question: Can R be run in batch mode from the command line?I'd like to use input files and get output files. If so, where can I find the documentation? help(batch) doesn't help. Thanks! -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",
1998 Oct 21
2
R, SuSe and readline
Hello folks, I can't make R use the GNU-Readline-library. However, - I have run configure with --enable-readline and - configure *has found* the library. My Linux distribution is SuSe, July 1998. I'm using Kernel 2.0.25. I was told by Douglas Bates (r-devel), that this problem between R and (probably) SuSe was discussed before on this list. Can someone tell me how I can make R use
2000 Nov 14
1
3 D bar graph
Anybody who did a 3D bar Graph in r? Thanks Fairouz Makhlouf -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
1999 Jan 04
0
test
test ---- Robert King, Australian Environmental Studies, Griffith University, Australia 3875 6677 Robert.King at mailbox.gu.edu.au http://www.ens.gu.edu.au/robertk/ When all's said and done, a lot more is said than done.
1999 Jun 11
1
Segmentation fault (Debian slink+libc6 2.1)
Hi, I've just upgraded my debian machine to the 2.1 libc6 libraries, and I started getting segmentation faults with R. I tried re-compiling and got the same problem. I checked with the dependencies for the binary package, and I have all the required libraries. Any ideas? Thanks, Robert. ---- Robert King, Australian Environmental Studies, Griffith University, Australia 3875 6677
1999 Sep 01
1
What happened to error()
Apologies for the dumb question, but what happened to error()? How do I fail out of a function? ---- Robert King, Australian Environmental Studies, Griffith University, Australia 3875 6677 Robert.King at mailbox.gu.edu.au http://www.ens.gu.edu.au/robertk/ "It might be in the basement, I'll go upstairs and check .." Escher
1999 Dec 21
0
HTML archives will be down
Hi, As a precaution against all the computers here (Griffith University, Australia) going down with the Y2K bug, all the computers are going down. The site that the R archives are on will be down for a number of days over the new year, and the machine which actually creates the HTML archive files will be down for longer. Apologies for the disruption. ---- Robert King, Australian Environmental
1999 Nov 16
2
including NAs in a table
I have two factors, WC and WD. If I want a table including all the values of each factor, including NAs, I can get a table by going: table(as.character(WC),as.character(WD),exclude=c()) Is there an easier way? I guess this is a feature request for table() Thanks, Robert. ---- Robert King, Australian Environmental Studies, Griffith University, Australia 3875 6677 Robert.King at