The zonal tag has no wiki summary.
2
votes
1answer
42 views
Tabulate Area crashes Python and ArcGIS
I have a script that runs Tabulate Area on a single feature class multiple times with different rasters. In total Tabulate Area runs 5 times. 2 of the input rasters are provided as arguments to the ...
1
vote
0answers
24 views
Problems running zonal statistics - not all zones represented
I have been working on a Python script to automate the steps illustrated by whuber here:Create points around the edge of viewshed results
I am trying to create a horizon graph illustrating the ...
0
votes
1answer
28 views
using ZonalStatisticsAsTable in python script
I use a python script in which the function ZonalStatisticsAsTable is called. In ArcGIS9.3 it all worked fine. Our company just went to ArcGIS 10.1 and now it doesn't work anymore.
When looking ...
0
votes
0answers
16 views
Distance from rivers-Zonal Statistics [duplicate]
I am using arcgis 10.1
I am trying to calculate euclidean distance from each feature using this large rivers shapefile http://www.arcgis.com/home/item.html?id=44e8358cf83a4b43bc863646cd695945 .
And ...
0
votes
2answers
75 views
dat. File and Zonal Statistics
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 it to GIS to use it as a raster input to calculate zonal ...
0
votes
0answers
22 views
Zonal statistics-troubleshooting
I am using ARCGIS 10.1. I am trying to calculate zonal statistics using as feature zone the world borders (http://thematicmapping.org/downloads/world_borders.php) and as input raster ...
2
votes
1answer
56 views
Zonal Statistics-Weighting
I have a raster file on precipitation and I want to create zonal statistics as a table using a shape file wiht boundaries of countries across the world. However it appears that I need to take into ...
2
votes
1answer
71 views
Error 010240 with ZonalStatistics
I have a code that calculates the sum of water recharge for a pixel for a 9 year period (This piece of code works fine, just thought I would show how it is made just in case. The values range from 0 ...
1
vote
1answer
56 views
Is there a way to perform zonal statistics-like operations with feature zone data without doing feature-to-raster transformation?
I want to use zonal statistics on Chinese counties (which can be very small) from a fairly coarse (0.5 degree) raster grid. The problem with zonal statistics is that it returns a much smaller number ...
6
votes
2answers
296 views
How to use ZonalStats plugin?
I am using QGIS 1.8.0 on a Windows Home Premium 7 machine. I have a single band TIFF that is 187 MB in size. My vector polygon shapefile represents a regular grid of a 147x112 36kmx36km grid cells. ...
5
votes
2answers
437 views
How to use QGIS Zonal Stats Plugin from Python Console?
I am using the Zonal Stats plugin in QGIS to extract raster statistics from overlaying polygons (I have shapefiles of species distribution and I want to extract environmental data from within each ...
2
votes
0answers
97 views
How to use GRIB data in ArcGIS? (Zonal Stat as Table)
I am trying to calculate zonal stats as table with a python script for 45 .grib files from the ERA-40 Monthly Mean of Daily Mean database (http://data-portal.ecmwf.int/data/d/era40_moda/) for certain ...
2
votes
1answer
110 views
joining a table from zonal statistics as table with a layer, problem with reserved names
I have a raster file (percentage of total forest killed) and a shapefile with polygons (municipalities). I thought as a first step I would like to find out which municipality shows the greatest ...
1
vote
0answers
98 views
zonal statistics in Python crashes
I have a python script that works (it's worked for several other projects in the past and it worked for my current project initially). But whenever I run it, Python crashes sporadically. It would go ...
1
vote
0answers
281 views
Raster grid for zonal statistics in R
I have two raster layer, the first one r is my zonal mask as a raster grid, and I created as:
ext <-extent(Yraster)
r <- raster(nrows=32,ncols=32,ext)
r[] <-(1:ncell(r))
and project it ...
