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The NOAA National Centers for Coastal Ocean Science is hiring a Computational Ecologist, a statistical/computational ecologist with experience fitting advanced spatial models to marine wildlife survey data (e.g., seabirds and marine mammal transects, fisheries trawl surveys) in R and other statistical languages. This is a full-time, long-term stable contract position. We are looking for an

To follow up on my previous question, suppose a user R session wants to unload one workspace and load another within an R session. Is the following the correct sequence? 1. save.image() to save the current workspace as .Rdata in the current working directory. 2. rm(list=ls()) to remove everything from the workspace. 3. setcwd("xxx") to set the new working directory. 4.

I remember reading somewhere that locations on plots (in my case, arguments x and y for legend()) can be specified in several scales besides the usual data scale. I would like to set x and y as proportions of total plot size or something similar. Can anyone steer me to documentation on how to do it? -- Michael Prager, Ph.D. <Mike.Prager at noaa.gov> NOAA Center for

This is (correctly) filed under "non-reproducible." The corresponding notes say "solved by re-installing Windows (private comm)." I would like to clarify that this was solved by re-installing the patch known as "Windows 2000 Service Pack 2," not by reinstalling Windows itself. Perhaps my original message was not clear. I point this out because installing the

Hello, I'm hoping that there is an easier way to rename columns in a data frame other than by using the names() assignment, which requires you to type in all the column names at once for a data.frame, in the case that I simply want to rename a single column in a data frame. Also, is there an easy way to move columns in a data frame around relative to the other columns? Thanks in

Is there an optimal / minimum sample size for attempting to construct a classification tree using /rpart/? I have 27 seagrass disturbance sites (boat groundings) that have been monitored for a number of years. The monitoring protocol for each site is identical. From the monitoring data, I am able to determine the level of recovery that each site has experienced. Recovery is our

A minor inconvenience in updating an R installation is remembering which packages were installed previously. Has anyone written a script to inspect a previous installation, then get & install the same packages into the new installation? -- Michael Prager NOAA Center for Coastal Fisheries and Habitat Research Beaufort, North Carolina 28516 Opinions expressed are personal, not official.

I've run into a problem with dir.create on R2.2.0 Windows XP 2002 SP 2. setwd("d:/") print(dir.create("d:\\otis-sim\\rdata", recursive=T)) print(dir.create("d:\\otis-sim\\", recursive=T)) Both return false and fail to create the directories. setwd("c:/") print(dir.create("d:\\otis-sim\\rdata", recursive=T)) Returns true and succesfully

hello all, i'm forwarding this question for a colleague. "Is it possible to open a 2nd R Console?" regards, mark+ -- mark garey ucsf department of epidemiology and biostatistics division of biostatistics 185 berry street, suite 5700 san francisco, ca. 94107-1739 415.514.8147

Hi all I would like to know if anybody knows of either a good book or web site that explains one how to use Fortran. I would like to call some of the Fortran subroutines but before I can do that I first want to learn how to code in Fortran. Regards Allan

Dear R experts I work in computational fluid dynamics in 2D: I have a 200-by-200 array of fluid properties such as density and velocity and these evolve in time (the precise equations depend on the problem). Up to now, I've been using Fortran and the code is very very messy. It works, but a professional programmer friend of mine saw the source code once, and had to be strapped down for his

Dear all, Many thanks for the help suggesting the use of "layout" cmd. How to insert a title in a 1x2 layout? The title is related to both graphs. I looked for it in help, unsuccessfully. Thanks in advance, Rodrigo. my reproductible code: ---------------------------------------------------------------------- def.par <- par(no.readonly = TRUE) nf <- layout(matrix(c(1,2),

Hi, I would like to use the format function to get numbers all with three digits to the right of the decimal point, even in cases where there is no significant digit left. For example, I would like to get c(0.3456789,0.0000053) as "0.346" "0.000". It seems that it is not possible to force format to print a "0.000", i.e. without any significant decimal places. Is it

Dear All, I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both graph, but the plots dimension did not overlap well on the same plots. How can I have both filled.contour and contour on the same graph? The commands that I have written are as follows:

Dear All, I have some code that works in S-Plus for writing saving a graphics file to disk :- graphsheet(type = "auto", format = "WMF", file = "G:\\north0l.wmf", pages = "auto", print.background = F, orientation="landscape", color.style="color") plot(x,y) dev.off() This works fine in S-Plus. I have tried playing

Hi, The following may sound stupid so please forgive my stupidness. I have a question which I don't know how to name it so I have to start from the beginning. In an attempt to gain better understand how a photochemical air qaulity model works, I plotted hourly ozone concentration contour from the model's standard output to observe the changes in simulation. Because the model actually

I am trying to great a new column of effort data from an existing vector of gears used. It is a simple code where effort[Gear==300]=(DIST_TOW*7412) effort[Gear==301]=(DIST_TOW*7412) The code appears to work for some of the data but fails for others and inserts a NA value I also get this warning message Warning message: number of items to replace is not a multiple of replacement length Can

First . . . SUBSCRIBE (I want to subscribe to the list). Second, I am trying to install R on windows XP. In looking at the instruction manual I get the following: The simplest way is to use 'rw1081.exe' or 'miniR.exe'. Just double-click on the icon and follow the instructions. If you installed R this way you can uninstall it from the Control Panel. How do I get the

Hi There: I was wondering if there is a way to read FORTRAN list data (similar to IDL's readf function). I often use FORTRAN for most of my number crunching, and use something like IDL to visualize and perform statistical analysis on that data. Since the each file is rather large (>100 Mb), formatting the output into columns or tables is impractical, hence the "list"

Dear R People: On the Edit menu, there is a GUI preference tab. On the Font option, the highest value is 18. Has anyone ever had the font size set larger than that will any success, please? Thanks, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu PS Windows, R 2-2-1