0
votes
3answers
17 views

Capabilities of the Analytical Hierarchy Process (AHP) in conjunction with the weighted overlay tool

I am making a prospective map of fossil deposits using the "Weighted Overlay" ArcGIS tool. Input factor rasters are mostly topographic in nature (elevation, roughness, TPI, etc). Initially, I had ...
2
votes
0answers
31 views

Spatial Autocorrelation tool vs. Incremental Spatial Autocorrelation

When you run the Spatial Autocorrelation (Monrans I) tool, you have the option of setting 'Conceptualization of Spatial Relationships'. This option isn't available for the Incremental Spatial ...
2
votes
1answer
33 views

Raster statistics along polygon edges

I would like to summarize raster statistics along the edge of each parcel/polygon in a shapefile. For each parcel shown below in yellow, I would like to calculate the average, min and max value of ...
1
vote
1answer
68 views

Need to calculate values for a cell based on surrounding landscape

I have a raster file with the urban development of a county mapped out (values: 1=urban 0=not urban). I also have a raster file with several blocks of forested land, each block of land has its own ...
0
votes
0answers
30 views

Using GDAL and Python to replace the Spatial Analyst TabulateArea method

Has anyone tried to phase out the use of ESRI's Spatial Analyst extension by replacing it with GDAL in Python? I have a script that only uses the TabulateArea and Statistics analysis but not much else ...
0
votes
1answer
110 views

Do I need to run regression in each samples separately?

I'd like to do smooth NDVI image by regression analysis; response of time series NDVI image to Julian date to represent the seasonal changes in NDVI as a function of Julian day. The time series NDVI ...
-1
votes
1answer
102 views

How to export raster value into excel or ASCII [duplicate]

I'd like to get all pixel values of time series NDVI image to find regression coefficient to smooth the abnormal NDVI value through the time. So that firstly, I want to export values of raster into ...
0
votes
1answer
56 views

Is there any method to choose the value of each pixel according to land cover

I have 2 images; one is land cover image (imgA) and monthly mean temperature image (imgB). I'd like to choose value of each pixel from imgB corresponding to imgA. WhaT I expected is each pixel of ...
0
votes
0answers
46 views

What does “unsupported bin funcion type” error in ERDAS mean?

I want to open a set of .img files in ERDAS which are output files of zonal statistic function in ARCGIS. Before running the function, all images can be opened in ERDAS. After calculating zonal mean, ...
4
votes
1answer
173 views

Do SAS Bridge to Esri and SAS/GIS extensions add value to Spatial Analyst and Spatial Statistics?

My organization uses SAS extensively, but has been increasing GIS use and capacity recently (that's why they hired me). I was asked to evaluate the two SAS GIS extensions Bridge to Esri and SAS/GIS. ...
0
votes
1answer
234 views

how to choose stratified random sample on multispectral image

I'd like to choose random samples from multispectral image according to each Land Cover image. The multiband image has 70 bands representing land surface temperature data from MODIS. Land cover image ...
3
votes
2answers
120 views

What Spatial Analyst tool to use when comparing competitive species distributions?

A spatial analysis question: I'm trying to compare species distributions and specifically overlap between two species (Water Vole and European Rabbit) that are competitive species. I also want to ...
1
vote
1answer
96 views

How can I choose values from stacked raster images according to location of ROI

Before I choosed ROI on land surface temperature (LST) images and obtained pixel values of LST. Now I need pixel value of another images which are stacked multi-band image. My main purpose is to ...
1
vote
1answer
250 views

How to make a field “Unique ID field” in ArcGIS?

I need to perform an OLS (Ordinary Least Squares) but ArcGIS asks for a unique ID field. I have a field which would be the right candidate, it's a FIPS number (12 chars), which I have made a number, ...
0
votes
1answer
71 views

How to choose pixel values according to each land cover class?

I would like to do following steps using two types of images (precpitation and Land cover image): select pixel values of precipitation image within each land cover classes calculate total amount of ...
1
vote
1answer
114 views

How can I know how many percent of area changed between 2 time step in arcgis?

I'd like to ask how to do change detection in ARCGIS? I need an image to show how many percent of area in class has been changed between 2 years? for example in output image, red is the area that has ...
3
votes
1answer
455 views

How to create mask file from shapefile using ArcGIS for Desktop?

I have a shapefile of Lakes over my study area. Each polygon has attribute information of each lake, name, shape etc. Actually I want to eliminate all lakes from analysis. In other word, I want lakes ...
2
votes
1answer
147 views

How can I define hierarchical levels in eCognition

I'd like to define classes with 2 levels. Firstly I'm gonna classify some broad classes such as forest, grassland in a level 1. Furthermore, I'd like to classify these classes into some sub-classes ...
2
votes
0answers
270 views

Problems with spatial autocorrelation in Geographically Weighted Regression (GWR) analysis

I have conducted an Ordinary Least Squares (OLS) and Geographically Weighted Regression (GWR) analysis in ArcGIS where I have tried to predict biodiversity patterns in an area. When I examine the ...
2
votes
2answers
422 views

Using Regression Trees in ArcGIS

Hi I have a follow up question to this post: Statistical analyses for survey against raster? I have a very similar problem as the initial poster David. I am creating a multivariate model from ...
7
votes
3answers
223 views

How to compare spatial patterns (crime cases vs population)?

I am looking for a way to statistically compare two spatial patterns in shape polygon data (not point pattern analysis). Let's say I have a city map divided in neighborhoods (barrios), in shape ...
6
votes
2answers
323 views

What do ArcGIS regression analysis warnings 000853, 000916 & 000981 mean?

I'm trying to do regression analysis using a shapefile which contains dependent variable (NDVI) and explanatory variable (prec) in ArcGIS. First, I run GWR analysis and then run spatial ...
1
vote
0answers
151 views

Plotting time-series data in ArcGIS

I'm attempting to produce interpolated plots of water quality time-series data from ArcSDE. This is the data format: OID WELL_ID WELL_NAME SAMPLE_ID SAMPLE_DAT PARAM RESULT ...
-3
votes
1answer
271 views

How to calculate cumulative mean in Arcgis

I'd like to get cumulative mean value from a multiband image (4 bands). How can I do it in Arcgis, ERDAS and ENVI? Thanks in advance
2
votes
0answers
295 views

About zonal statistic function in ARCGIS

I calculated zonal statistic in Arcgis to get max/min value of each LC types. Broadly, LC image include forest, grassland, waterbody etc. But output max value of zonal statistic function give me 0.972 ...
1
vote
1answer
142 views

How can I multiply each band of multiband image by separate scalars?

I have an image with 5 bands. I need to multiply each band of this image by different scalars one time (I'm lazy to do it one by one) and then get multiband image as a output. For example ...
0
votes
0answers
102 views

Does the Calculation of Spatial Weights Matrix in ArcGIS take into account 3D?

This question is about Spatial Weights Matrix in ArcGIS. Does it take into account 3D or not? I want to calculate Spatial Weights Matrix with SPACE_TIME_WINDOW. Anton
1
vote
1answer
698 views

Modelling Sea level rise scenarios for a Coastal county in ArcGIS

I am a graduate student @ Clemson University and am working on a GIS based project which is to model different sea level rise scenarios and estimate its impacts on a coastal county and to suggest ...
4
votes
1answer
430 views

Statistical analyses for survey against raster?

I am somewhat of a newbie to geostatistical analyses, but pretty familiar with GIS and remote sensing packages. I was wondering if anyone had suggestions on appropriate geostatistical analyses for a ...
6
votes
2answers
808 views

What are best practices to compare densities and locations between two sets of points?

I have two sets of point shapefiles. They represent two different customer groups for a retail store. Shapefile A represents online customers, Shapefile B represents in-store customers. What I ...
7
votes
3answers
990 views

How to cluster points based on a kernel density?

I have a large dataset with 36k points representing commercial land uses, each with a field containing the square footage. I have run a kernel density analysis on this dataset, producing a raster ...
3
votes
3answers
755 views

How do you produce a output table containing distances between mineral grains at various azimuthal directions?

I am using ArcGIS 10, the newest version and I am a senior at Western Carolina University and working on my senior thesis and the data set in which I have are images of mineral thin sections all ...
1
vote
0answers
662 views

two results of IDW in ArcMAP are different

i added the following points to ArcMAP using "Add XY Data". x,y,z 7,39,117 27,17,122 27,61,123 46,36,136 52,14,138 55,46,141 56,56,137 65,24,144 65,36,145 Changed raster output size in "options" ...
6
votes
1answer
2k views

RMSE between two rasters step-by-step

Can anyone show how to calculate the RMSE (root mean square error) between following two rasters step-by-step and discuss on the obtained results' min and max values, and how to interpret it. Thanks a ...
5
votes
2answers
150 views

Monitoring programmes

I am not sure if it is a right place to ask this one but let me try. Monitoring programmes are known for various targets and for various spatial levels. They may include regions, countries or even ...