Re: [R-sig-Geo] averaging X of specific Y (latitude)

Could you put up a little sample from your data frame? It's easier to work with then. Erin From: Elaine Kuo [elaine.kuo...@gmail.com] Sent: Saturday, December 15, 2012 10:26 PM To: Hodgess, Erin Cc: r-h...@r-project.org; r-sig-geo Subject: Re: [R-sig-Geo

Re: [R-sig-Geo] averaging X of specific Y (latitude)

] on behalf of Hodgess, Erin Sent: Saturday, December 15, 2012 11:11 PM To: Elaine Kuo; r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] averaging X of specific Y (latitude) Could you put up a little sample from your data frame? It's easier to work with then. Erin From

[R-sig-Geo] installing rgdal on Debian

Hello! I'm trying to install rgdal on Debian. I keep getting the checking for gdal.h...no error. I have updated libgdal1.dev. I also put the /usr/include and /usr/include/gdal in my PATH. Any ideas as to what is wrong, please? I have a feeling that it is something very simple. Thanks, Erin

Re: [R-sig-Geo] Shape file of USA land cover data

Hi I got the same data set that Milan did and used the raster: r - raster(c://goodc//nlcd2006_landcover_4-20-11_se5.img) and it worked. When I used gdal, it said that it was too big. Thanks, Erin PS the plot looks really nice too. From:

Re: [R-sig-Geo] assigning names to iteratively generated rasters

Hi Terry, Try this: assign(paste(d,i,sep=),crop(x,extent(x,r1=r[1],r2=r[2],c1=c[1],c=c[2])) From: r-sig-geo-boun...@r-project.org [r-sig-geo-boun...@r-project.org] on behalf of Beutel, Terry S [terry.beu...@daff.qld.gov.au] Sent: Thursday, December 06,

Re: [R-sig-Geo] Interactive (click-able) map within R

Hello: I just started working on this yesterday (literally!) via FastRWeb. Simon Urbanek gave me some suggestions to use which involve HTML, callbacks, etc. I know I little about HTML but not about javascript. However, I'm trying to put some sense to things. Thanks, Erin

Re: [R-sig-Geo] Interactive (click-able) map within R

I don't know about REST. Does it work with or is part of R, please? Thanks, Erin From: Florian Lengyel [florian.leng...@gmail.com] Sent: Wednesday, October 24, 2012 12:12 AM To: Hodgess, Erin Cc: Ebrahim Jahanshiri; r-sig-geo@r-project.org Subject: Re: [R-sig

Re: [R-sig-Geo] rgeos on Debian

That's it. Thanks so much! From: Ista Zahn [istaz...@gmail.com] Sent: Wednesday, October 17, 2012 8:37 PM To: Hodgess, Erin Cc: r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] rgeos on Debian Debian packages many R packages including sp. Have you tried apt

[R-sig-Geo] rgeos on Debian

Hi all! I'm not sure if I should be asking here or at the Debian sig, but here goes: I'm trying to load sp onto a little debian system. However, since rgeos is one of the dependencies, I get an error, since the version of geos for debian is too old. Has anyone else run into this, please?

[R-sig-Geo] Raster question (newbie to rasters)

Hi R Geo People: I have a question about getting spatial autocorrelation with rasters, please. Can you get a local autocorrelation for each square in the raster, please? Thanks. Sincerely, Erin Erin M. Hodgess, Ph.D. Associate Professor Department of Computer and Mathematical Sciences

[R-sig-Geo] using Geography markup languague (GML)

Hello everyone! Does anyone use GML, please? If so, could you recommend a good tutorial or intro book, please? I've used R to produce KML, but have never used GML. thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston -

[R-sig-Geo] plotKML tutorial or vignette?

Hello again. I would like to investigate the plotKML package and was wondering if there is a tutorial or article or vignette available, please. Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto:

Re: [R-sig-Geo] using Geography markup languague (GML)

Great! thanks! Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From: Michael Sumner [mailto:mdsum...@gmail.com] Sent: Sun 7/15/2012 9:28 PM To: Hodgess, Erin Cc

[R-sig-Geo] online program

Dear R Sig Geo People: Does anyone know of any fully online programs in Geostatistics, please? I'm working on a certificate in GIS. It's very interesting, but I would like more of the statistics in geostatistics. Thanks, Sincerely, Erin Erin M. Hodgess, PhD Associate Professor Department

[R-sig-Geo] simulating a particular autocorrelation structure for a raster

Dear R Sig Geo People: I would like to create a 16x16 raster, say, with autocorrelation structure of 0.9 for nearest cell, 0.9^2 for 2nd closest, and so on. How would I go about generating that, please? I thought about putting together a correlation matrix, multiplying, and throwing in rnorm.

[R-sig-Geo] [O/T] pixel question

Dear Geo People: I tried to look this up on the Internet, but couldn't really find my answer. If a satellite has 16 km resolution, how many pixels/megapixels is it using, please? Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University

[R-sig-Geo] trouble with spTransform

Hello again. I'm having a little bit of trouble with spTransform (probably I'm doing it wrong), but here is what I'm doing: Original data frame with UTM locations near Phuket, Thailand: test1.df Loceast north 1 a 748.168 602.861 2 b 754.302 615.609 proj1 - CRS(+proj=utm

[R-sig-Geo] converting from UTM to Decimal degrees

Dear R Sig Geo People: Is there a function to convert UTM coordinates to Decimal degrees, please? This is just for a few points; nothing big. I know that this is a relatively easy one, but thought I'd check before I wrote up something. Thanks, Erin Erin M. Hodgess, PhD Associate Professor

[R-sig-Geo] getting pictures from an online webcam as jpeg

Hello everyone! I'm not sure if this is the right place to go, but thought I'd start here. I want to download pictures from an online webcam (national park, no porn!), transfer them to PGM and run R scripts on them. Fair enough. My problem is the following: the particular website that I'm

[R-sig-Geo] getting pictures from an online webcam as jpeg: solved

Hi again. I went into the source for the webpage and found the website for just the jpeg. All is solved. Sorry for the trouble. sincerely, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto:

Re: [R-sig-Geo] a world type mapping question

struggling still with generating spatial interpolation for the isolines. I appreciate tour comments/suggestions. Jose On 3/29/2012 6:31 PM, Hodgess, Erin wrote: Perfect...rworldmapExamples has everything. Thanks, Erin -Original Message- From: Carson Farmer [mailto:carson.far

Re: [R-sig-Geo] a world type mapping question

I'm looking there and in mapproj and tried to look at mapdata but am having trouble downloading that one. Thanks Erin -Original Message- From: Sarah Goslee [mailto:sarah.gos...@gmail.com] Sent: Thursday, March 29, 2012 5:27 PM To: Hodgess, Erin Cc: r-sig-geo@r-project.org Subject: Re

Re: [R-sig-Geo] a world type mapping question

Perfect...rworldmapExamples has everything. Thanks, Erin -Original Message- From: Carson Farmer [mailto:carson.far...@gmail.com] Sent: Thursday, March 29, 2012 5:29 PM To: Hodgess, Erin Cc: r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] a world type mapping question Hi Erin

Re: [R-sig-Geo] Conversion of a SpatialPolygonsDataFrame into aESRI file

I've run into the same thing...am somewhat relieved to hear that it's not the dreaded just me. -Original Message- From: r-sig-geo-boun...@r-project.org [mailto:r-sig-geo-boun...@r-project.org] On Behalf Of Francis Markham Sent: Wednesday, March 21, 2012 5:29 PM To: Cristina Silva Cc:

Re: [R-sig-Geo] hourly time series

Do you want to run the analysis on the hourly data or some aggregate of it, please? thanks, erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From:

[R-sig-Geo] visualize this book

Dear R Sig Geo People: Hope you're having a nice weekend. Are you familiar with the book Visualize This, please? The code for download is in Python. Does anyone know if it is available in R? Or should I give myself a crash course in Python this week (spring break) and translate? Or would I

[R-sig-Geo] trouble with writeOGR

Hi R Sig Geo People: I'm having some trouble with the files produced by writeOGR. Here is what I'm doing in R: str(ann11) Formal class 'SpatialPointsDataFrame' [package sp] with 5 slots ..@ data :'data.frame': 192 obs. of 10 variables: .. ..$ Date : Factor w/ 884 levels

[R-sig-Geo] an ArcGIS question

Hi R Sig Geo People: May I ask an ArcGIS question here, or should I try to find an ArcGIS group, please? Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu [[alternative HTML version

[R-sig-Geo] setting up a spatial data frame

Dear R Sig Geo People: I have a data frame with the following columns; str(sup1.df) 'data.frame': 88 obs. of 34 variables: $ OBJECTID : int 1 2 3 4 5 6 7 8 9 10 ... $ POLYID: int 60 63 61 59 21 5 78 73 17 22 ... $ SUM_POP100: int 3881 13471 16716 2497 49277 33973 22317

[R-sig-Geo] an R and ArcGIS question

Hi R Geo People! I have a spatial points data frame. I want to create a layer for ArcGIS. Do I need to have both a .shp and .dbf file or something else, please? Thanks, Erin Erin M. Hodgess, Ph.D. Associate Professor Department of Computer and Mathematical Sciences

[R-sig-Geo] an opinion question

Dear R Sig Geo People: Would it be worthwhile to construct a sort of autoregressive component from spatial autocorrelation via the Yule Walker equations, please? Or would it be better to combine spatial autocorrelation with temporal autocorrelation and get a sort of spatio-temporal model

[R-sig-Geo] local moran again

Dear R Sig Geo People: Can a local moran be calculated on a variable with lots of NA's, please? Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu [[alternative HTML version

[R-sig-Geo] local moran

Dear R SIG Geo people: I'm trying to learn a bit about the Local Moran function. What does the listw input mean, please? If I have a data frame, which should I use for the neighbors, please? Thanks, Erin PS Sorry if this is really dumb. Erin M. Hodgess, PhD Associate Professor Department

[R-sig-Geo] install.views

Dear R Sig Geo People: I'm trying to install the Spatial as found in Bivand et al. I'm in Windows with R-2.14.0 on an XP machine. Here is what I did: library(sp) install.views(Spatial) Error: could not find function install.views Does install.views not exist anymore, please? Thanks, Erin

[R-sig-Geo] R equivalent of join between two data frames

Dear R Sig Geo People: Is there an equivalent of join from ArcGIS 10 in R, please? I've been experimenting with match but the results between the two are not the same. thanks, Sincerely, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University

Re: [R-sig-Geo] R equivalent of join between two data frames

frame object (e.g., a SpatialPointsDataFrame) it should work. Dan On 10/31/2011 11:33 PM, Hodgess, Erin wrote: Dear R Sig Geo People: Is there an equivalent of join from ArcGIS 10 in R, please? I've been experimenting with match but the results between the two are not the same. thanks

Re: [R-sig-Geo] R equivalent of join between two data frames

...@gmail.com] Sent: Tue 11/1/2011 2:09 AM To: Hodgess, Erin Cc: Dan Putler; r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] R equivalent of join between two data frames Erin, I believe you can. See the help for merge, in particular the all.x and all.y parameters. Cheers, F. Markham On 1

[R-sig-Geo] IDW example

Dear R Sig Geo People: Here is probably a dumb question, so please forgive me in advance (or swear, whatever is most appropriate): could someone recommend a good reference on IDW that has a numeric example, please? I like to work things out on a small scale to see how they work. thanks, Erin

[R-sig-Geo] address to lat/long

Dear R Sig Geo People: Is there a function in the various geo packages that will take an address and produce lat/long values, please? thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto:

[R-sig-Geo] uploading KML to Google My Maps

Dear R Sig Geo People: I use R to create little KML files and then upload them to the google My Maps through the interactive process. But I was wondering if anyone knew how to upload them automatically. Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and

[R-sig-Geo] negative latitudes in coordinates function

Dear R Sig Geo People: This is a goofy question. If I have a data set with negative latitude and and I want to use the coordinates function, what should I be changing on the negative latitude please? Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and

Re: [R-sig-Geo] negative latitudes in coordinates function: Please ignore

I had the wrong names in. Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From: r-sig-geo-boun...@r-project.org on behalf of Hodgess, Erin Sent: Thu 10/6/2011 5:36 AM

Re: [R-sig-Geo] negative latitudes in coordinates function

: b.rowling...@googlemail.com on behalf of Barry Rowlingson Sent: Thu 10/6/2011 5:41 AM To: Hodgess, Erin Cc: r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] negative latitudes in coordinates function On Thu, Oct 6, 2011 at 11:36 AM, Hodgess, Erin hodge...@uhd.edu wrote: Dear R Sig Geo People

[R-sig-Geo] more Geostat classes

Dear R Geo People: I was lucky enough to attend GEOSTAT 2011 in Landau and had a fine time/learned tons of things too. Are there any more geostat-esque classes anywhere soon, please? Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences

Re: [R-sig-Geo] How to find description of plot gps positions on map

One other thing to keep in mind: Google maps use UTM coordinates rather than lat/long. Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu -Original Message- From:

[R-sig-Geo] newbie bbox type question

Dear R Sig Geo People: I have a large data frame which includes dates and times as columns. I want to have one map (via writeOGR) which has the whole thing, and then have several maps by days. However, I want the whole area as defined by the entire data set to show every day. I looked at

[R-sig-Geo] Please ignore previous starma models message

I found it via another method. thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodge...@uhd.edu [[alternative HTML version deleted]] ___

[R-sig-Geo] STARMA models

Dear R Sig Geo People: Are STARMA models implemented in R, please? I checked both the R search sites and the R-sig geo archives but did not see anything. Thanks, Erin Erin M. Hodgess, PhD Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown

[R-sig-Geo] creating a shp file from a tiff file

Dear R Sig Geo People; I have a question which I suspect might be very simple, but here it goes: I have a tiff file would like to create a shp file. So far, I have used the readTiff function to create a pixmap. But I'm not sure where to go from here. My goal is to create a shp file to be

[R-sig-Geo] question about writeOGR and kml files

Dear R SIG Geo People: I have the following object: class(zip1_wgs84) [1] SpatialPointsDataFrame attr(,package) [1] sp and I am able to use writeOGR just fine. However, I would like to make some changes to the KML output file. I looked at kmlLine in maptools, but that works with Spatial

Re: [R-sig-Geo] newbie question about R and GRASS

: hodge...@uhd.edu From: Roger Bivand [mailto:roger.biv...@nhh.no] Sent: Mon 1/10/2011 3:18 AM To: Hodgess, Erin Cc: r-sig-geo@r-project.org Subject: Re: [R-sig-Geo] newbie question about R and GRASS On Sun, 9 Jan 2011, Hodgess, Erin wrote: Dear R SIG Geo

[R-sig-Geo] newbie question about R and GRASS

Dear R SIG Geo People: I'm trying to replicate the material on page 100 in Prof. Bivand ASDAR book. However, I am getting the following error message: gmeta6() Error in if (file.exists(file) == FALSE) if (!missing(asText) asText == : argument is of length zero In addition: Warning

<    1   2