Forum: Spatial Statistics

Hello, Could someone please direct me towards a resource that explains the benefits or advantages of using a Getis-Ord Gi* hot spot analysis over...

Hi All, I am attempting to make a predictive model of where a sailboat may go in particular winds and currents. I have created a predictive...

Hi all I have a point dataset with all addresses in a city with data for number of jobless people, low educated people, people above 64 years etc....

Sorry, noob question here. How can I convert the zoom level between maps with different spatial references? For example, if someone zooms into...

Hey Guys, I am trying to join three different layers. I have one layer of my state (Florida), one layer that i created from the Florida layer...

I am trying to build a map with a predefined Coordinate System. Several of the shapefiles have a different coordinate system. For some reason they...

Hello, I have 136 bicycle accidents mapped. I perform the point density tool using square miles. My results: 0-5 5-14 14-23 23-32 32-41...

Hello I am working with 2012 Washington D.C crime data. It has about 35,000 incidents. I have broken down the file into two different files...

I'm running a nearest neighbor analysis on a shapefile and it keeps failing instantly and the message is "error 999998: unexpected error" and failed...

hello i'am beginner user of arcgis, and i need your help: i have a land use map at 25 m and i want ti aggregate it to 250 m . and For...

I am a novice to GIS and need some help on which statistical test to run on my data. I have created 13 polygons (which are buildings) on one...

Hello, I've been exploring SAC for some project data and just came across this line in the Moran's I tool help page: "The input field should...

I am new in ArcGIS ,previously i was using MapInfo. I have a data of which i need to prepare a map with isopleth lines. so for this when i'm...

I have interpolated pasture yield in a paddock over a year now I want to see how annual yield varies across the paddock. Can anyone point me in the...

Dear All, I have a map of Pakistan with the transportation highways as polylines. Suppose I have 5 highways, A, B, C, D, E. I have data...

Hi, I'm pretty new to GIS, so maybe there is a simple solution to my problem and I just haven't been able to figure it out. I'm trying to...

Hi Folks I'm getting a problem with both the Spatial Statistics and Spatial Analysis Toolboxes/Tools. Every time I run a tool, I get the...

hi all; novice with arc 9.3 here, bear with me... I have shapefile1 with oodles of numbers; I want to summarize these, but, I want them grouped by...

Hi Everyone I'm keep getting the following error (with tool failure) every time I use ArcGIS 10 Spatial Statistics or Spatial Analysis Toolboxes:...

My names Hhssein Saeed Musa, i am Hydrogeologist, Please can you Help me be cause I wont to Know How to Calculate Rainfall With The Thiessen Polygon...

Hi, When I run a Select by Location query in ArcMap 10, I get a certain number of features but when I run the exact same query in Geocommons...

Hi I need to do spatial analyses of birds populations. In the forest the plot was divided in a grid, based in that grid(m) the location of the...

I need to determine which temperature measurements are outliers at their depth. Anselin Local Moran's I accounts for 2D autocorrelation, but how do...

I was wondering if anyone knows a way to divide a cities polyline feature class into equal parts. My task is to divide our local utilities gas mains...

Hello, I am finding it difficult to get a solution to my problem. I have about 2,000 geocoded locations. Some points are less than 10 miles...

Hello, I have municipalities (preferred as polygons, but point features also possible) with "journey time" from a central location as a continous...

Hi all, I have ArcGIS 10 and GME and I am trying to calcuate turn angle and step length for my telemetry data. I have an excel spreadsheet for one...

Hi -- I am trying to make population weighted centroids from census block groups. Downloaded some data from the Census Bureau to get block groups...

hello! I just ran my mean center calculations, the input feature class was correct, the output feature class correct. Calculations ran, I got a...

Hi all, I have a data set which is based on a survey where hundreds of individuals were asked to list sources of income. The first column is...

Hi, I am trying to calculate euclidean distance from each feature using this large rivers shapefile...

Hi, I am trying to introduce the 5 degree dataset from here http://www.cru.uea.ac.uk/cru/data/precip/ (it is the first link). And once I introduce...

Hi, I am trying to calculate zonal statistics using as feature zone the world borders (http://thematicmapping.org/downloads/world_borders.php) and...

Hi All I have created a weight matrix (in R) in a csv format which I'm trying to use it for Cluster or Hotspot analysis using ArcGIS v10.1. Below...

Hi, After generating of NDVI, i want to give specific value to particular polygon, for example i am having NDVI layer with the range of -1 to +1, if...

I am working on a project were we receive point data from multiple households in multiple clusters. I want to flag clusters where the minimum...

Hello everybody, I am trying to prepare a map of mountain islands from contour map or elevation zone of Himalaya. To be precise, I want to find a...

Hello, I am just starting working with GIS and I have two questions. I have a raster file on precipiation and I want to combine it with a...

I am trying to use Spatial Autocorrelation (Global Moran's I) on some data to help me find a distance for hot spot analysis. My z-values are very...

Hello, I am not sure if I understand properly what is the meaning of the existence of large scale spatial variation in the mean value when first...

Hi I have read many of the posts regardng Morans I and Hot Spot and after reading a couple of other sources have a question which would like to...

I have two datasets that have the same information (point values of groundwater level). However one is of 2007 and the other of 2001. I would like to...

Can someone explain how to Populate M Values into an Attribute Table? I ran an intersect and need to know the M values for the point.

I'm trying to calculate the point distance between the centroids of US Census Tracts, which should be pretty straightforward. However, the Point...

I am currently trying to use different spatial statistics, including Hot Spot Analysis, OLS regression and Geographically Weighted Regression. Within...