The act of comparing or the process of being compared.

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chi-squared for two rasters in R

I am kind of new with statistics. I have two raster with categorical values and I want to get chi-square. How can I do this using R? Rasters have the same region and same resolution. Is chi-square ...
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116 views

Comparing ShapeFile Data in C# [closed]

I have made a List containing all the original data (.shp files), and I have another List containing the modified data. I basically want to check all the modified file data against the original... So ...
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Maximum likelihood Between 2 linestrings in Postgre?

I created a lot of linestring datasets and loaded them all in PostgreSQL, I want to compare said linestrings 2 by 2 using a maximum likelihood Query which would give me a coefficient proportional to ...
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Comparison of polygon geometry of 2 layers (ArcEditor)

I´m facing the following Issue: I´m trying to find changes between 2 continuous polygon layers. Polygons that need to be compared dont have matching IDs - to explain, I have polygon X and polygon Y ...
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55 views

Can I change the pimary key for feature class comparisons with ArcPy

I'm using ArcPy to compare two feature classes from Esri file geodatabases using the Feature Compare (Data Management) tool. The script itself works very well. However it always uses the OBJECTID to ...
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comparing raster values over one specific transect

I have a raster with water temperature data. I used various kinds of filters over it (smoothing, sharpening filter etc.) in various combination. I want to compare the results, to check which ...
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170 views

Is there a way to use IN filters in OpenLayers?

Is there a way to use IN filters (like the IN operator from SQL) in OpenLayers 2? For example, let's say, I want a filter like this: city = 'Paris' OR city = 'London' OR city = 'Lisbon' In ...
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56 views

Road network comparisons - how to extract roads that do not completely fall within the buffer

I am trying to compare how well one road network aligns with another - I have created a buffer around the first network and would like to select only the roads from the second network that fall ...
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63 views

Comparing routes

I am looking for a way to compare routes of 2 or more persons to be taken by car. Person 1 has a starting point A1 and a destination point A2. Person 2 has a starting point B1 and a destination ...
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775 views

How to compare two feature classes on one field?

I have two feature classes: an old one and a new one that I want to compare. Both feature classes have the same field structure and have a reference field 'ID' whose values are the same, except in ...
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Looking for a user-friendliness & functionality comparison for ArcGIS and QGIS [duplicate]

what is a user-friendly (ease of use) and functionality comparison for ArcGIS and QGIS? derived from Which topics are fundamental for ArcGIS? QGIS and gvSIG comparison