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DavidGordon1
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since
07-04-2014
11-11-2020
11
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My Ideas
(0 Idea Submissions)Latest Contributions by DavidGordon1
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If I understand you correctly, I need to generate a new raster for every math operation in the in the regression equation? That's straightforward, but it seems inefficient. Thanks Dan.
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04-26-2016
10:39 AM
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I'm having trouble understanding how to implement a multiple regression equation in ArcGIS 10.3. I've already performed the regression in SAS and have the necessary coefficients, and so I don't need to redo an analysis with one of the Modeling Spatial Relationship tools in ArcGIS. I simply need to create a new raster that is derived from my existing equation based on values from 3 different input rasters. I've examined the Combine Tool, but that converts my numeric values to integers. Weighted overlay apparently is based on ranking data. What am I missing? Dave
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04-26-2016
10:23 AM
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Thank you Eric! That article provided the information about variables I needed. I finally got my model to work. Dave
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11-27-2012
12:21 PM
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I'm trying to do a similar operation that Claire seemed to have been asking about. In my case, I want to extract 155 separate areas from a raster using a shp file with 155 circular buffers as masks. I set up the model as described in model builder and it successfully iterated through the dataset. However, the output rasters kept overwriting the last file so I ended up with only one raster at the end of the run. Clearly I don't understand how to specify the output from the Extract by Mask. Can someone help me? Dave
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11-27-2012
07:01 AM
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I finally got around to doing this analysis using the trigonometric approach suggested by Hardolph. I transferred all the data from my attribute table into Excel, then set up the functions described by Hardolph to calculate the bird locations, then brought it back into Arc as an XY event layer. Worked great! Thank you!
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08-23-2011
11:22 AM
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Good ideas Hardolf! I'll try using the direction-distance tool in editing. I hadn't thought of that. Thanks! Dave
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06-08-2011
09:06 PM
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I'm conducting a forest bird survey in which I need to precisely record locations of individual birds. It's impossible to use a GPS to directly find the coordinates for each sighting because of the steep terrain and forest canopy. But I do have UTM coordinates for many control points across my study site. From these controls, I can get an azimuth and distance to observed birds using a compass and range finder. So, is there a tool, program, or calculation I can use to find the UTM coordinate of a bird from the coordinate of the observer, plus distance and azimuth estimates? It would be perfect if I could do this as a calculated field in my attribute table. Any help would be very much appreciated! I'm working with ArcGis 9.3. Dave
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06-08-2011
09:53 AM
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Activity Feed
- Posted Re: Implementing Multiple Regression Equation on Spatial Statistics Questions. 04-26-2016 10:47 AM
- Kudoed Re: Implementing Multiple Regression Equation for DanPatterson_Retired. 04-26-2016 10:47 AM
- Posted Re: Implementing Multiple Regression Equation on Spatial Statistics Questions. 04-26-2016 10:39 AM
- Posted Implementing Multiple Regression Equation on Spatial Statistics Questions. 04-26-2016 10:23 AM
- Tagged Implementing Multiple Regression Equation on Spatial Statistics Questions. 04-26-2016 10:23 AM
- Posted Re: Clip a raster using features in feature class on Geoprocessing Questions. 11-27-2012 12:21 PM
- Posted Re: Clip a raster using features in feature class on Geoprocessing Questions. 11-27-2012 07:01 AM
- Posted Re: Calculate point location from offset observer on Data Management Questions. 08-23-2011 11:22 AM
- Posted Re: Calculate point location from offset observer on Data Management Questions. 06-08-2011 09:06 PM
- Posted Calculate point location from offset observer on Data Management Questions. 06-08-2011 09:53 AM
- Tagged Calculate point location from offset observer on Data Management Questions. 06-08-2011 09:53 AM
- Tagged Calculate point location from offset observer on Data Management Questions. 06-08-2011 09:53 AM
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