similar to: Pie Chart in map

Hi everyone I have some records that include a date attribute for the date and time but i need to separate the data and analyze it separately in GIS by Month and Year, so i need to pull these attributes out and create their own attribute field. So the input: RawData2.. returns ID period_end_date 1 22 9/10/2007 0:00:00 2 44 2/2/2006 0:00:00 and i need to get ID period_end_date

Dear All, I'v tried to read in data in numerous ways including:- Spain10km<-data.frame(readAsciiGrid("F://RMap//sp10kpointid1.aux")) Error in readAsciiGrid("F://RMap//sp10kpointid1.aux") : object 'cellsize' not found In addition: Warning message: In readLines(t, n = 6) : incomplete final line found on 'F://RMap//sp10kpointid1.aux'

I have been using the "username map" parameter for some time on various versions of Samba 2, and it has worked nicely. Last week I upgraded to Samba 3 and integrated with Active Directory. Since I am using Solaris 8, and "nsswitch.conf" doesn't support winbindd, I am using the "add user script" parameter to add users. What is happening is that users in

Hi Gurus! I have a job that is to get randomly samples from point-based GIS data (sp called shape GIS files) under the total sum resctricted. For example, I would like to take random smaples under the 1000 persons in each city. The randomly sampled persons should not be over 1000 any case. Thank you in advance, -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3283 Email : phdhwang@gmail.com

Hi, I meet a strange trouble writing shapefiles with write.pointShape() from maptools. > write.pointShape(mylines[,5:9], file="Sxtplinshp", mycoordspt) Error in write.pointShape(mylines[, 5:9], file = "Sxtplinshp", mycoordspt) : shapefile names must conform to the 8.3 format It seems that the function request a special shapefile name spelling (conformed to 8.3

Hello, is there a package in R that would allow map drawing: coastlines, country/state boundaries, maybe topography, rivers etc? Thanks for any guidance, Mark

Dear list, I have to compare two digital elevation models in raster format (geotiff). I then have to calculate the differences in altitude for each cell and make some statistics (basic as mean, median, std, range but also more "advanced" as RMSE) on that. I do not know very much how to proceed: 1) is it possible to import the geotiff in R? If so with which package? if not which is the

Hello- Does anyone know if R can read in ESRI file geodatabase feature classes, directly from the file geodatabase? I currently have to export the data out of Arc, to a csv file, then read the csv file. I'd like to bypass this step and read directly from the file geodatabase. Thanks for your help. -al

The main limitation of the shapefiles package that I put together is that it does not create shapefiles from R objects - rather it only writes shapefiles that have been read into R and manipulated within the constraints of the existing file structure. By this I mean that for example you can change the coordinates of points and write them back out. Or you can add a bunch of blank columns in the

Dear R'rs, is there a function that checks if a given vector contains a certain value. E.g., x<-c(1,2,3,4). How can I get a TRUE or FALSE for whether x contains a 2? -- Dimitri Liakhovitski Ninah.com Dimitri.Liakhovitski at ninah.com

Rails 3: I have a view books/:id/show.html.erb - in the view, I have a form with a select tag to pick a template, that on dropdown should submit the form which rerenders the page based on the selection: <%= form_tag book_path(@book) do %> > > <%= select_tag "template[]", >> options_for_select([["Template1","template1"], ["Template2",

Dear members, How can I read and plot an ArcGIS raster file into R ? The file has extension .aux and contains floating point bathymetry data. The purpose is to create a spatial model in R that uses ArcGIS map data. I have managed to read and plot various shape files into my R project, but I am stuck with this now. I am new to this list and also to R, so any help would be much appreciated. Many

Hey, i'd like to compose a clock-like looking plot composed out of two circles, each showing the length of a period (to compare them). first, to do so, it looked the easiest by using pie(), just puting multiple pie-charts over each other. the problem is that once the second pie is drawn, it replaces the first one. does anybody know how to add a second, smaller pie over an existing one,

Hello R Community, I have imported a dataset which contain X Y coordinates and would like to recreate a shape file after some data analysis. What i have done is to import some taxlot data and join them based on some criteria. I want to check to see how well the joining went by reviewing the results in GIS. A couple things. I cant seem to import a shape file correctly using the maptools

Dear all, I'd like to produce a simple pie chart for a customer (I know it's bad but they insist), and I have some difficulties setting the initial angle. For example: pie(c(60, 40), init.angle=14) and pie(c(80, 20), init.angle=338) both present the slices in the same direction, where: pie(c(60, 40)) pie(c(80, 20)) present the slices in different directions. I read everything I

Dear all, After going through the Lattice doc and R-help list and google, I got the feeling that there is no function in lattice or other package to compute a pie chart object of class "trellis". Although pie charts are obviously not considered optimal even in the pie() doc ;-) , pie chart trellis objects would be easy positioned e.g. over a map drawn with the grids package. Can

Hi, My problem is: I have many data to plot as pie-chart, so the labels are not readable! Is there a way to solve my problem? For example is it possible move the labels more far to the graphic? Thanks in advance Marco

Hi, despite the fact that pie charts often fail, I'll draw them anyway (in a case were they are not fail ;-) ). Does anybody know a package/methods which can draw pie of pie or bar of pie charts similar to that in MS Excel? -- Kind regards, Mathias

With a pie chart pie(c(11, 15, 16, 29, 31)) how can I generate labels for the chart, such as orange: 11 green: 15 blue: 16 red: 29 purple: 31 rather than the default labels that are drawn automatically 1 2 3 4 5 -- Mark Polishook, D.M.A. Technology Coordinator Morehead Hall, Rm 132 Center for Academic Advising and Adult Learning Montclair State University Montclair, NJ 07043 (973)-655-7114

We regularly get questions about making pie charts, and frequently veer off into the philosophical and practical issues surrounding that form of data graphic: human perception of angles and so on. So while this isn't an R issue, I thought some of you might appreciate this brief discussion of the efficacy of pie charts: http://fakescience.tumblr.com/post/6042293374/understanding-pie-charts