search for: montana

Dear R-helpers, I have lat/lon coordinates of regularly spaced grid points, about 4Km apart, covering the entire US continental region. I would like to mask this rectangular grid in order to extract all and only the grid points within a specific region. Today I want to extract Montana, say, from this grid, and I am hoping to somehow use the returned value of the function map("state",region="montana"). I'm not espoused to using the "maps" library database, it's just the way I thought one could go about it (one smarter than I am...) and it wou...

Any Rails Developers in Montana? Especially Helena or Bozeman? I don''t expect there''s enough of us to form a user group, but it might be nice to talk shop ''offline'' every once and a while. Eric (in Helena) --~--~---------~--~----~------------~-------~--~----~ You received this message becau...

...Dave Roberts -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ David W. Roberts office 406-994-4548 Professor and Head FAX 406-994-3190 Department of Ecology email droberts at montana.edu Montana State University Bozeman, MT 59717-3460

...ata is lake>1, is there a way to run 3rd quartile regressions on each lake? I would imagine that regressing each population would require some call of the subset function, but I cannot figure out how to call it. Thanks in advance, SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 [[alternative HTML version deleted]]

...ading the archives, it looks as though this is a hard limit but can be changed rather easily. Unfortunately, I haven't found any specifics on how to change this limit. Does anyone know how I can edit this upper limit? Thanks, SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University P.O. Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 http://studentweb.montana.edu/steven.ranney [[alternative HTML version deleted]]

Over the past year I have been working on a Web interface to R, Rweb. Anyone that is interested in trying it out can point their browser at: http://www.math.montana.edu/Rweb The main Rweb page provides access to three versions of Rweb. A simple text entry form that returns output and graphs, a more sophisticated Javascript version that provides a multiple window environment, and a set of point and click modules that are useful for introductory statistics cour...

...2 1 3 1 4 1 2 2 4 2 1 3 2 3 4 4 Into one like this: Tag 1 2 3 4 #Date header 1 1 0 0 1 2 1 1 1 0 3 1 0 0 0 4 1 1 0 1 Thanks, Ben Cox Research Assistant (M.S.) Montana Cooperative Fishery Research Unit 301 Lewis Hall Montana State University Bozeman, MT 59717 (406)994-6643

...e right=FALSE and include.lowest in the hist function but it still puts lengths that is greater than the cutoff into the next bin. All software seems to bin right, but fish nerds do it a little different. Thanks! Ben Cox Graduate Research Assistant (M.S.) Montana Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717 (406)994-6643 [[alternative HTML version deleted]]

...d. Citation: Koenker, R. and J. A. F. Machado. 1999. Goodness of fit and related inference processes for quantile regression. Journal of the American Statistical Association 94:1296-1310. Thank you - Steven H. Ranney Graduate Research Assistant (Ph.D.) USGS MT Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717 office: 406-994-6643 fax:? ? 406-994-7479 http://studentweb.montana.edu/steven.ranney

...ditor I'm new to R, trying to get away from Rcmdr (though it has been helpful), and still trying to learn the language with the aid of several books on the R. A search of the R Archive did not prove fruitful. Thanks in advance, SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 [[alternative HTML version deleted]]

...r Like my last post, I'm certain there's something simple I'm overlooking. I've been able to get this to work on other data sets, but _how_ I've been able to get this to work, I'm unsure. Thanks for your help, SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 [[alternative HTML version deleted]]

...the intercepts and slopes from each of these linear regressions into a seperate data frame. Any ideas? I think it would probably require some kind of 'for' statement, but I'm just not that smart. Thanks for your help, SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 [[alternative HTML version deleted]]

...ameters that describe the beta distribution (a,b) given the mean and variance. mean = a/(a+b) variance = (a*b)/(((a+b)^2) * (a+b+1)) Any help as to where to start would be welcome. -- Scott Story Graduate Student MSU Ecology Department 319 Lewis Hall Bozeman, Mt 59717 406.994.2670 sstory at montana.edu

..., when I use nls.control=(minFactor=0.000001) OR nls.control(minFactor=0.000001), I get the same error. I'm at a loss. I'm not sure what else I can do to have R reduce the step size if it's not nls.control(). Thanks, SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University P.O. Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 [[alternative HTML version deleted]]

...[2] 1 2 3 4 5 [3] 1 2 3 4 5 [4] 1 2 3 4 5 [5] 1 2 3 4 5 [6] 1 2 3 4 5 so then I could call cat(a[1]) and get 1 1 1 1 1 1 1 1 and cat(a[2]) and get 1 2 3 4 5 Anyone know the answer (hopefully simple) Cheers, Karla Sartor ---------------------------------------------------------- Karla Sartor Montana State University - LRES ksartor at montana.edu

Hello, We are trying to find a function to compute "stress" in our multidimensional scaling analysis of a dissimilarity matrix. We've used "dist()" to create the matrix and "cmdscale()" for the scaling. In order to determine the number of dimensions we would like to plot stress vs. dimensions. However, we cannot find a pre-made command. It seems that other

Hello- Does anyone have a recommendation on how to call R from perl? I'm using the IPC::Open2 module, and running R with the --slave and --quiet options. The problem is that I can't predict how many lines of output I should try to read for each command-- if any! The ultimate goal is to use perl to provide a form-driven web interface, but have R do the underlying calculations. Thanks

...out how to force the regression from YC 91 through 82. A call to the rev() function in front of YC does not produce the results I'm looking for. More than likely, I'm overlooking something. Thanks for any help you can provide. SR Steven H. Ranney Graduate Research Assistant (Ph.D) USGS Montana Cooperative Fishery Research Unit Montana State University PO Box 173460 Bozeman, MT 59717-3460 phone: (406) 994-6643 fax: (406) 994-7479 [[alternative HTML version deleted]]

hi all, i'm trying to get elements in a matrix into a vector. i need a "streamlined" way to do it as the way i'm doing it is not very serviceable. an example is a 3x3 matrix like 0 0 3 2 0 0 0 4 0 to a vector like 3 2 4 thanks...mj [[alternative HTML version deleted]]

..., as of yet, we have not been able to obtain satisfactory results using mapproj. Given the specs below can someone please tell us how to use mapproj (or some other R library) to convert lat-long coordinates into the appropriate Albers Conical Equal Area coordinates? Thanks in advance Joe Atwood Montana State University jatwood at montana.edu #################################################################################### The material at the bottom of this message is the metadata from the shapefile we are using (as created in Arc-GIS). #########################################################...