search for: ncea

Displaying 20 results from an estimated 42 matches for "ncea".

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2007 Sep 20
2
Superimposing vector polygons over raster grid in a plot
...he spplot display list? It seems as though many scientists would like to create such plots without resorting to GRASS or another GIS. Thanks for any advice, Rick Reeves Rick Reeves Scientific Programmer / Analyst National Center for Ecological Analysis and Synthesis UC Santa Barbara reeves at nceas.ucsb.edu www.nceas.ucsb.edu 805 892 2533
2008 May 22
15
Pros and Cons of R
...on for my office about R capabilities to deal with and analyze spatial data, display data and maps, and connections with GIS. I've used in my presentation info from the CRAN, the spatial Task view, and the more striking graphics examples from http://addictedtor.free.fr/graphiques/thumbs.php and NCEAS http://www.nceas.ucsb.edu/scicomp/GISSeminar/UseCases/MapProdWithRGraphics/OneMapProdWithRGraphics.html together with examples of my own work. I am finishing with pros and cons about R and I am wondering if you can come up with other examples, or comments. Here they are: Pros: - R is a programm...
2010 Nov 07
1
Rdindex truncating titles?
...installed package (after building with the --force flag set). Doing a diff on the old INDEX (saved outside the source package directory so that --force didn't obliterate it) and the new INDEX in the installed package directory, I got: > 7c7 > < in terms of the NCEA gpa. > --- > > in terms of the NCEA > 19c19 > < number of successes ("old" and "new"). > --- > > number of successes > 32,33c32 > < doing calculati...
2007 Dec 05
5
Which Linux OS on Athlon amd64, to comfortably run R?
...quite comfortable with it, even if I have to re-learn a lot of things. But this is not a problem, I will improve my knowledge with time. My main problem now, is that I installed Ubuntu 7.10 Gutsy Gibbon on the new one amd64. To install R on it i followed the directions found here http://help.nceas.ucsb.edu/index.php/Installing_R_on_Ubuntu but unfortunately it did not work. After reading some posts on the R-SIG-debian list, such as https://stat.ethz.ch/pipermail/r-sig-debian/2007-October/000253.html I immediately realize that an amd64 is not the right processor to make life easy. There...
2007 Dec 05
5
Which Linux OS on Athlon amd64, to comfortably run R?
...quite comfortable with it, even if I have to re-learn a lot of things. But this is not a problem, I will improve my knowledge with time. My main problem now, is that I installed Ubuntu 7.10 Gutsy Gibbon on the new one amd64. To install R on it i followed the directions found here http://help.nceas.ucsb.edu/index.php/Installing_R_on_Ubuntu but unfortunately it did not work. After reading some posts on the R-SIG-debian list, such as https://stat.ethz.ch/pipermail/r-sig-debian/2007-October/000253.html I immediately realize that an amd64 is not the right processor to make life easy. There...
1999 Nov 13
1
postgresql package for R
A preliminary release of my postgres package for R is at http://www.nceas.ucsb.edu/~keitt/R/postgres.tgz It allows one to read and write data frames to and from a postgres database, execute queries and has an experimental "proxy" interface that allows you to access postgres tables using the standard, local data frame model. All accesses to the data frame gen...
1999 Nov 05
1
"break" breaks _outer_ loop -- ugh!
...t;break" will break from the outermost enclosing loop not the innermost loop. Is it a bug or language feature? Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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-...
1999 Nov 13
1
postgresql package for R
A preliminary release of my postgres package for R is at http://www.nceas.ucsb.edu/~keitt/R/postgres.tgz It allows one to read and write data frames to and from a postgres database, execute queries and has an experimental "proxy" interface that allows you to access postgres tables using the standard, local data frame model. All accesses to the data frame gen...
2004 Feb 25
1
lapack routine dgesdd, error code 1
...would be great. thanks in advance, Karl -- ------------------------------------------------------------------------ Karl Cottenie Postdoctoral Fellow National Center for Ecological Analysis and Synthesis - UC Santa Barbara 735 State Street, Suite 300 Santa Barbara, CA 93101 e-mail: cottenie at nceas.ucsb.edu http://www.nceas.ucsb.edu/~cottenie phone: 805 892 2520 fax: 805 892 2510
2008 May 23
0
Pros and Cons of R :GUI
...ut R capabilities > to deal with and analyze spatial data, display data and maps, and > connections with GIS. I've used in my presentation info from the CRAN, the > spatial Task view, and the more striking graphics examples from > http://addictedtor.free.fr/graphiques/thumbs.php and NCEAS > http://www.nceas.ucsb.edu/scicomp/GISSeminar/UseCases/MapProdWithRGraphics/OneMapProdWithRGraphics.htmltogether with examples of my own work. > > I am finishing with pros and cons about R and I am wondering if you can > come up with other examples, or comments. Here they are: > &g...
2010 Oct 13
3
Matrix subscripting to wrap around from end to start of row
...rings, which are not accepted in a subscript. I have the feeling I am unaware of some obvious trick. Any ideas would be greatly appreciated! ***************************************************** Alisa A. Wade Postdoctoral Center Associate National Center for Ecological Analysis and Synthesis wade@nceas.ucsb.edu (406) 529-9722 home email: alisaww@gmail.com [[alternative HTML version deleted]]
2007 Apr 27
0
Hdf5 library error when using R 2.4 within GRASS6
...------- Would anyone have any suggestions? I tried to find the 'missing' hdf5 library: libhdf5-1.6.4.so.0: in the archives, to no avail. Thanks, Rick Reeves -- Rick Reeves Scientific Programmer / Analyst National Center for Ecological Analysis and Synthesis UC Santa Barbara reeves at nceas.ucsb.edu www.nceas.ucsb.edu 805 892 2533
2006 Apr 19
1
comparing execition time: R vs matlab linear algebra...
...solutions in R? such as..... 2) Would developing a solution using the Matrix or SparseM classes improve performance? Thanks in advance for any insights! Regards, Rick R -- Rick Reeves Scientific ProgrammerAnalyst National Center for Ecological Analysis and Synthesis (NCEAS) University of California, Santa Barbara reeves at nceas.ucsb.edu 805 892 2533
2007 Dec 03
1
again on ubuntu 7.10 and amd64
...is not a problem, I will improve my knowledge with time. My main problem now is that I bought myself a new computer (described at the end of this e-mail) and I was offered an amd64 on which I installed ubuntu 7.10 Gutsy Gibbon. To install R on it i followed the directions found here http://help.nceas.ucsb.edu/index.php/Installing_R_on_Ubuntu but unfortunately it did not work. After reading some posts on this list, https://stat.ethz.ch/pipermail/r-sig-debian/2007-October/000253.html I immediately realize that an amd64 is not the right processor to make life easy. I'm going to ask the pe...
2008 Mar 08
3
Problems with installing the rgl package on Linux
Dear All, I am trying to install the rgl package on R 2.6.1 running on Fedora 8 (Linux), but I am experiencing the following problems: ----------------------------------------- configure: error: X11 not found but required, configure aborted. ERROR: configuration failed for package 'rgl' ** Removing '/usr/lib/R/library/rgl' ----------------------------------------- Any ideas?
2011 Aug 17
2
An example of very slow computation
...out to be a factor of >1000. The code is below. We would be grateful if anyone can point out any egregious bad practice in our code, or enlighten us on why one approach is so much slower than the other. The problem arose in an activity to develop guidelines for nonlinear modeling in ecology (at NCEAS, Santa Barbara, with worldwide participants), and we will be trying to include suggestions of how to prepare problems like this for efficient and effective solution. The code for nlogL was the "original" from the worker who supplied the problem. Best, John Nash -----------------------...
2000 Feb 01
1
Install problems with RPgSQL
...script in RPgSQL, please try the version attached to this message. Let me know if you have any problems. Thanks. Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/ -------------- next part -------------- A non-text attachment was scrubbed... Name: RPgSQL-0.4.tar.gz Type: application/x-gzip Size: 31662 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-announce/attachments/20000201/ea8ed7a7/attachment.bin>
2007 Jul 24
0
New package: pomp, inference for partially-observed Markov processes
...or sequential Monte Carlo) and the likelihood maximization by iterated filtering (MIF) method of Ionides, Breto, and King (PNAS, 103:18438-18443, 2006). Future support for a variety of other algorithms is envisioned. A working group of the National Center for Ecological Analysis and Synthesis (NCEAS), "Inference for Mechanistic Models", is currently implementing additional methods for this package. Simple worked examples are provided in the form of a vignette, "random_walk_example". The package is provided under the GPL. Contributions are welcome, as are comments, sug...
2000 Feb 01
1
Install problems with RPgSQL
...script in RPgSQL, please try the version attached to this message. Let me know if you have any problems. Thanks. Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/ -------------- next part -------------- A non-text attachment was scrubbed... Name: RPgSQL-0.4.tar.gz Type: application/x-gzip Size: 31662 bytes Desc: not available URL: <https://stat.ethz.ch/pipermail/r-announce/attachments/20000201/ea8ed7a7/attachment.bin>
2004 Feb 14
1
speed in batch mode versus interactive mode
Hello R-users, is there a speed gain in submitting R code in batch mode as opposed to the normal interactive. I searched the R website and the archives, and only found a reference R-data.html that "to read in very large objects it may be preferable to use the dumpfile as a batch script rather than source". Is this true for any R code on both Windows and Linux systems, and how much speed