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SteveLynch
Esri Regular Contributor
since
07-04-2014
a week ago
888
Posts created
17
Kudos given
66
Solutions
295
Kudos received
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My Ideas
(0 Idea Submissions)Latest Contributions by SteveLynch
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The most important factor for interpolation is that it only deals with a continuous variable. In other words something like rainfall or temperature. And not something like soil types or tree diameters. Cross validation should also be used to make sure that you are not totally wrong. Also, what do you mean by "seights"? Thanks Steve
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12-17-2012
06:36 AM
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grid name can't have a space. Try changing ct_ma test to ct_ma_test steve
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12-07-2012
11:52 AM
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On Linux the grid names must be lower case (same for coverages). Steve
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12-04-2012
01:41 PM
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Daniel Have a look at http://resources.arcgis.com/en/help/main/10.1/#/Working_with_large_datasets_in_Geostatistical_Analyst/0031000000p3000000/ Regards Steve
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11-27-2012
01:07 PM
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If you have point data on a grid (1m x 1m), why not use PointToRaster with an output cell size of 1m? If you do kriging, do you want to go finer than 1m? and are you interested in the standard error of prediction surfaces? Regards Steve
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11-27-2012
07:07 AM
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have a look in the doc, http://resources.arcgis.com/en/help/main/10.1/#/How_Polygon_To_Raster_works/001200000037000000/ Viz., If priority is specified, and: The feature in question overlaps the cell by less than 50%, and: - The priority is greater than zero, then it is considered. - The priority is equal to zero, then the feature is not considered. Add a field to your polygon feature class and populate it with 1's and use this as the priority field. BTW, from ArcGIS 10 onwards, FeatureToRaster internally calls Point, Polyline or Polygon to Raster. Regards Steve
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11-21-2012
11:16 AM
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TopoToRaster's input can be float, integer or double. The output, however, will always be float (i.e 32 bit) Steve
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11-14-2012
12:05 PM
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Rachel If you also have Geostatistical Analyst and ArcGIS10+ I would suggest that you try Kernel Interpolation With Barriers The advantages include; optional standard error of prediction output and it does not use "line of sight" but rather "shortest distance around the barrier". REgards Steve
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11-08-2012
06:32 AM
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Hi, I tried the input barrier polyline option by converting the polygons to polylines but this didn't work and still interpolated outside the polylines. The barrier option in IDW uses a "line of sight" technique to determine which points are used when making a prediction at a location. Therefore, for example, if you have high values to the left of a barrier and low values to the right then your output will have a clear "split". The mask option that is suggested by m.gasior clips the output after all the interpolation has been done. You have to decide what you want, viz., - predictions should be influenced by the barrier, then use the barrier option - clip the output after interpolation is done then use the mask environment option. Hope this helps Steve
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11-07-2012
02:44 AM
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That equates to a 288 x 288 columns x rows raster, which is small. - What type of raster, Esri grid, img, tiff, etc. - Is the join persisted? - What happens when you throw it into CopyRaster or ExtractByMask? Thanks Steve
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10-24-2012
12:14 PM
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if the field in the raster attribute table is integer then Lookup will create an integer raster and if the field is float then Lookup will create a float field. i.e the type of the field dictates the output raster type Steve
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10-24-2012
09:10 AM
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A few comments... The signature for Con in pre ArcGIS 10 is - Con_sa <in_conditional_raster> <in_true_raster_or_constant> <out_raster> {in_false_raster_or_constant} {where_clause} and from 10 onwards we have output on the left hand side and the signature is - Con (in_conditional_raster, in_true_raster_or_constant, {in_false_raster_or_constant}, {where_clause}) If the geoprocessing tool exists then one need not use it inside the RasterCalculator tool. However, in some cases you can, for example (in ArcGIS10) Con("elev", 0, 1, "value > 1000") - where the cell value > 1000 use 0 else use 1 can be written in Python or in the RasterCalculator as Con(Raster("elev") > 1000, 0, 1) Regards Steve
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10-10-2012
07:47 AM
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the syntax (from the help) Con(in_conditional_raster, in_true_raster_or_constant, {in_false_raster_or_constant}, {where_clause})
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10-09-2012
02:56 PM
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Search for "02-03-2011 06:58 AM" in http://forums.arcgis.com/threads/364...values?p=74323 I.e use FlowAccumulation Steve
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09-20-2012
05:07 AM
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Esther See http://forums.arcgis.com/threads/3644-Generate-a-grid-of-latitude-values?p=74323
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09-19-2012
09:27 AM
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My kudoed posts
| Title | Kudos | Posted |
|---|---|---|
| 1 | 3 weeks ago | |
| 1 | 3 weeks ago | |
| 2 | 06-01-2026 05:57 AM | |
| 3 | 03-23-2026 07:11 AM | |
| 1 | 02-24-2026 05:28 AM |
Activity Feed
- Got a Kudo for How to add criteria to a suitability model. 2 weeks ago
- Kudoed GIS Career Pathways: Software Engineer for TylerMoon. 3 weeks ago
- Posted How to add criteria to a suitability model on Spatial Analyst Suitability Modeler Tips and Tricks. 3 weeks ago
- Got a Kudo for Re: re-opening Suitability Model on other computer - criteria ist empty. 3 weeks ago
- Posted Re: re-opening Suitability Model on other computer - criteria ist empty on Spatial Analyst Suitability Modeler Questions. 3 weeks ago
- Kudoed Re: re-opening Suitability Model on other computer - criteria ist empty for AnnaPetr. a month ago
- Posted Re: re-opening Suitability Model on other computer - criteria ist empty on Spatial Analyst Suitability Modeler Questions. 06-22-2026 07:59 AM
- Posted Re: re-opening Suitability Model on other computer - criteria ist empty on Spatial Analyst Suitability Modeler Questions. 06-16-2026 12:39 PM
- Got a Kudo for When to run suitability at full resolution?. 06-01-2026 06:35 AM
- Got a Kudo for When to run suitability at full resolution?. 06-01-2026 06:07 AM
- Posted When to run suitability at full resolution? on Spatial Analyst Suitability Modeler Tips and Tricks. 06-01-2026 05:57 AM
- Kudoed Introducing the ArcGIS Spatial Analyst Ideas Exchange for NairiSevajian. 05-12-2026 06:01 AM
- Got a Kudo for Understanding the values making up a Suitability Map. 03-24-2026 06:22 AM
- Got a Kudo for Understanding the values making up a Suitability Map. 03-24-2026 05:49 AM
- Posted Re: Error when re-opening Suitability Model - Restricted Areas on Spatial Analyst Suitability Modeler Questions. 03-24-2026 05:35 AM
- Got a Kudo for Understanding the values making up a Suitability Map. 03-23-2026 07:15 AM
- Posted Understanding the values making up a Suitability Map on Spatial Analyst Suitability Modeler Tips and Tricks. 03-23-2026 07:11 AM
- Got a Kudo for Re: Suitability Modeler "Generate Report" is greyed out. 02-24-2026 06:27 AM
- Posted Re: Suitability Modeler "Generate Report" is greyed out on Spatial Analyst Suitability Modeler Questions. 02-24-2026 05:28 AM
- Got a Kudo for Uncheck the 'Auto Calculate' option to quickly refine your criteria without waiting for the maps to refresh after each adjustment. 01-22-2026 06:16 AM
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