similar to: Importing data into R

Displaying 20 results from an estimated 3000 matches similar to: "Importing data into R"

2006 Mar 24
1
who can tell me the reason why it is different on calculating Moran's I using ARCGIS, Geoda and R?
The attachment is my dataset: 1.ccc.shp (the original data) 2.ccc.gwt, which is computed by Geoda; Introduction to the variables in my data: ID: key variable; N_LATITUDE: latitude measured by GPS; E_LONGITUD: longitude measured by GPS; LIVES: attribute data I get the different result of Moran's between ARCGIS and Geoda, R, why? ARCGIS:spatial statistics tools:spatial
2003 Oct 10
1
predicted values from rq
Dear statistics and R experts, I am a new R-user and my statistics is probably more than a bit rusty. So forgive me if the following question is relatively simple. I would like to plot the predicted values from a quantile regression analysis (quantreg v.3.31; R v.1.7.1) so that I can evaluate the fit. My response variable is tree growth (continuous), and my predictor variables are height
2004 Aug 23
2
Reading GAL file
Greetings: I am trying to work with spdep (everything is "brand new" downloaded this morning). OS = Windows 2000 (also up to date). The code I am using follows: #example gal.county=read.geoda("lnpilnd.GAL", row.names=NULL, skip=0) summary.nb(gal.county) Error in summary.nb(gal.county) : Not a neighbours list #end The gal file works just fine in GeoDa (also up to date).
2008 Mar 31
1
GeoDa spdep
My question is in regard to the spdep and GeoDa packages. Do you know how to extract a neighborhood/adjacency matrix from R? I need a matrix that has all the neighborhoods on the X and Y axis, and then a r=1 when the neighborhoods touch, and a r=0 when neighborhoods don't touch. I think the Moran's I functions use a matrix like this when they estimate Moran's I. I can estimate
2004 Aug 25
1
Newbie Question: Spatial Autocorrelation with R Tutorial?
Howdy All, I am looking for some good tutorials (books, websites, whatever) for calculating/testing for Spatial Autocorrelation using R. Specifically, I am wanting to test for autocorrelation of a number of variables measured at a set of discrete locations. Up to this point I have been exploring the "spdep" package and I can get "moran.test" to work, but I am concerned that
2007 Feb 06
2
How to do "moran's I test"?
I want to do "moran's I test" in R language. I try to use "gearymoran" in Package "ade4","moran" in Package "spdep", and Moran.I in Package "ape". But I do not know how to do it because data format is different. My data: x y dbh 111.03 10.7 7 118.11 0.28 1.2 165.36 0.36 8.4
2006 Nov 30
2
*** caught segfault *** error
Dear R users, I use R 2.4.0 on an iMac running Mac OS X 10.4.8, with a 2.16GHz Intel Core 2 Duo and 2GB 667 MHz DDR2 SDRAM. > sessionInfo() R version 2.4.0 (2006-10-03) i386-apple-darwin8.8.1 locale: es_ES.UTF-8/es_ES.UTF-8/es_ES.UTF-8/C/es_ES.UTF-8/es_ES.UTF-8 attached base packages: [1] "methods" "stats" "graphics" "grDevices"
2011 May 04
1
Instrumental variable quantile estimation of spatial autoregressive models
Dear all, I would like to implement a spatial quantile regression using instrumental variable estimation (according to Su and Yang (2007), Instrumental variable quantile estimation of spatial autoregressive models, SMU economics & statistis working paper series, 2007, 05-2007, p.35 ). I am applying the hedonic pricing method on land transactions in Luxembourg. My original data set contains
2004 Feb 19
1
How to create a "nb" object?
Hi group, I'd like to do spatial analysis of my data using the spdep package. It appears that a file of class nb is necessary, but I do not find what that should look like and if there is a function that creates such file for me. How can I create a nb-object of my data points? Thanks, René Eschen. [[alternative HTML version deleted]]
2002 May 10
2
RODBC for importing dbf
Hi I know that it is very easy to import data from a dbf file to R, by saving the data as csv, for instance. However, I have several hundreds of files to do that. So, I thought of using RODBC to read the dbf files and save it as data.frame. However, I cannot even start (this is my first time using such package): > library(RODBC) > bdades <- odbcConnect("prova.DBF") Warning
2009 Aug 31
1
R2 for SAR and validation
Hi everyone, How can i obtain R2 for SAR model? and how can i validate the results, can i use the coefficients directly in a simple formula like y=b0+b1*x1+... or do i have to use the complicated formula for SAR (the one with the weight matrix and rho and...)?   Thanks for any help!  [[alternative HTML version deleted]]
2005 Jan 30
1
New user...tips for spdep?
Hello List, I'm a very new user to the R system. I'm only beginning to learn the basics, but so far I've been able to do little more than try a few examples, and of course begin reading the documentation. My primary motivation for exploring R is the availability of tools like the 'spdep' package for calculating spatial statistics such as Geary's C and Moran's
2014 Jan 22
7
[Bug 73924] New: E[ PDISP][0000:01:00.0] chid 0 mthd 0x0080 data 0x00000000 0x00055080
https://bugs.freedesktop.org/show_bug.cgi?id=73924 Priority: medium Bug ID: 73924 Assignee: nouveau at lists.freedesktop.org Summary: E[ PDISP][0000:01:00.0] chid 0 mthd 0x0080 data 0x00000000 0x00055080 QA Contact: xorg-team at lists.x.org Severity: normal Classification: Unclassified OS: All
2015 Jun 04
1
error when samba-tool domain classicupgrade
When you try to upgrade on a test stand, an error occurs. I do not understand that you need to add ldap, or improve migration script? Before that I tried to version 4.1.7, but the error was the sam root at dc1:~/smb_old# samba --version Version 4.2.2-SerNet-Ubuntu-7.trusty I also modified the file --- ./upgrade.py 2014-10-01 00:00:00.000000000 +0600 +++
2003 Nov 12
1
"/" operator in model formula
Dear R-help folks, Can someone guide me to a source where I can learn more about the / operator in model formulae? I found a reference to it in Venables and Ripley's MASS, p. 142, where it says, in reference to ANCOVA: "Terms of the form a/x, where a is a factor, are best thought of as 'separate regression models of type 1 + x within the levels of a.'..." This seems
2003 Jun 30
4
french map
Hello, I would like to know if (as the usa map with Splus), it is possible with R to plot the french map and to add points (representing towns for instance) on the figure in the appropriate (x,y) system. Thank you. Nathalie Peyrard
2013 Aug 20
1
obtener matriz de contactos
Hola Freddy. Yo parto de un shape en que tengo los típicos archivos .shp, .sbx, .sbn, .shx y .dbf. En la tabla tengo el área de los poligonos en m2, el perímetro, el estado y el código ISO del estado dispuesto por el SGM. ¿Me puedes orientar un poco más? Gracias, Sebastían. El 14 de agosto de 2013 16:19, Freddy Omar López Quintero < freddy.vate01@gmail.com> escribió: > Hola
2006 May 30
5
Rails - Postgres - importing data
I am writing a application where there is a lot of data in an old Filemaker program that I am going to need to do a 1 time import...1 main table and 2 related tables. I can get the data from Filemaker into a dbf or csv or Excel file without problem. Is anyone aware of a utility for postgresql or a rails plug-in that might make this easier? I am worried about Rails import since I can''t
2016 Oct 19
2
3.6.23-25.el6_7 and 4.2.10 and "Domain Admins" are/not Admins?
hi all I have two different Samba versions as PDC and BDC and depending on which one is "domain master" users which are domain admins are not recognized as such. Everything seems normal with 3.6.23-25.el6_7 as "domain master" but when I configure them so 4.2.10 is the master then I login to Win7 fine but Windows tells me that the user is not an Admin and I need to supply
2016 Oct 10
6
Replacement pdc samba3 to samba4 nt classic
Migration was held in connection with the breakdown of the old server after setting up a new server stopped working to add windows pc to a domain root at pdc:/var/log/samba# cat /etc/samba/smb.conf [global] # Default options allow nt4 crypto = yes client ntlmv2 auth = no disable spoolss = yes dns proxy