Latest Contributions by SteveLynch

‎08-26-2011

Ted These 2 ESDA tools creates "dots" on the graph, where each dot represents what happens between 2 points. The number of points in the graph can be calculated by computing n(n+1)/2, where n=number of points. We have done testing and determined that n=500 is sufficient, i.e. 125,250 dots on the graph. Using more than 500 points really does not tell you much more, so we decided to warn you each time. n=1000 will create half a million dots, will you learn any more than if you used n=500? A rule of thumb when doing ESDA is to create a subset (use the CreateSubsets GP tool) if you're using a large dataset. 1000 is large when talking to geostatisticians. I cannot repro the crash. Hope this helps and thanks for testing Steve

‎08-26-2011

Roy Delete you Windows temp folder and your default file GDB. If this does not work (along with Jeff Swain's suggestions above in this thread) then please contact Esri Support. BTW, can you run Slope or Aspect and what happens if you use .shp input to IDW and output to Esri GRID? Regards Steve

‎08-23-2011

Roy Can you run IDW using this data? What version of ArcGIS are you using? Input data format - .shp, file or P geodatabase or ? Output format - grid, fGDB raster or ? Thanks Steve

‎08-15-2011

SP2 contains all the fixes in SP1. There is a problem with joined data on a pGDB in SP2. Please post your exatct steps or email me the data and your workflow (slynch@esri.com) Thanks Steve

‎08-15-2011

There is no update for "ArcGIS 9 Using ArcGIS Geostatistical Analyst", it is now contained within the ArcGIS documentation. The tutorial info can be found in the help or online at http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Introduction_to_the_ArcGIS_Geostatistical_Analyst_Tutorial/0031000000nz000000/ Steve

‎08-12-2011

Robert Please can you email me (slynch@esri.com) or post the problems that you have with TopoToRaster. Thanks Steve

‎08-10-2011

re-posted at http://forums.arcgis.com/threads/35984-Determining-contribution-of-environmental-variables-on-biodiversity

‎08-04-2011

Do you have Java installed? Please see http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Spline_with_Barriers/009z0000006r000000/ and what type of point feature class are you using? Thanks Steve

‎08-04-2011

The following two geostatistical interpolation methods are added: Areal interpolation - This new spatial interpolation technique supports the frequent need to transfer data from one set of geographic areas to a set of different geographic areas. Having this capability helps to solve a significant problem for regional analysis because the data used are often from different sources that are collected in different areal units. Empirical Bayesian Kriging (EBK) - Kriging is an important tool in geostatistics. Empirical Bayesian Kriging differs from other kriging methods in ArcGIS Geostatistical Analyst by accounting for the error introduced by estimating the underlying semivariogram. It also simplifies the workflow by requiring minimal interactive steps from the end user. The beta web site has a series of tasks that you can do to learn about these new capabilities. Try out the new functionality and report your experiences, issues and questions here! Thanks Steve Lynch

‎07-27-2011

Abby Setting the null values was only available in the Wizard and one cannot automate a Wizard workflow. However, a Geostat layer can be manipulated via the CreateGeostatisticalLayer GP tool. But you can't specify the Nodata values when using this tool. We then decided to remove the option from the Wizard. All tools in ArcGIS honor selections and ignore nulls, therefore Geostatistical Analyst is now in line with the rest of ArcGIS. Hope this helps in understanding why it was removed and sorry for the inconvenience. Steve

‎07-26-2011

In 10SP1 we fixed it so that Raster To Polygon with all NoData will throw ERROR 010151: No features found To test if a Raster has all NoData run the IsNull tool. If the output is all 1 then it only has NoData Steve

‎07-22-2011

Abby It is a 3 step process 1) arcpy.SelectLayerByAttribute_management('ca_ozone_pts', 'NEW_SELECTION', '"ELEVATION" = -9999') 2) arcpy.CalculateField_management('ca_ozone_pts', 'ELEVATION', 'NULL', 'VB', '#') 3) clear the selection or save the layer to a new FC in a file geodatabase Steve

‎07-20-2011

Abby If you rather store your feature classes in a file geodatabase then <nulls> are supported, i.e. ignored. Else, leave the -9999 values and do a selection prior to using the Wizard. Steve

‎07-09-2011

Chris Have you looked in the help? http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Set_Model_Parameter/00300000001m000000/ Regards Steve

‎06-09-2011

Andrew Persist the Join (i.e. CopyFeatures to new FC), can the field be used? Does IDW work? Can your use one of the joined fields to do Buffer (i.e. use your joined field in the Field control)? Thanks Steve

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Latest Contributions by SteveLynch

Re: Semi/CoVariance Cloud POPUPS

Re: Failure or Kriging Tool

Re: Failure or Kriging Tool

Re: Ordinary Kriging_Serious Application Error

Re: Where is ArcTutor docmentation?

Re: contour to dem

Re: input on environmental variables on biodiversity

Re: Blank error message when using Spline w/ Barriers

What's new with Geostatistical Analyst 10.1

Re: Set no data (null) value in geostatistical wizard?

Re: Raster to Polygon fails with empty input

Re: Set no data (null) value in geostatistical wizard?

Re: Set no data (null) value in geostatistical wizard?

Re: Cannot determine range and sill parameter values from GA model

Re: Cannot use Natural Neighbor when a table is joined to a feature class

Understanding the values making up a Suitability M...

Re: Suitability Modeler "Generate Report" is greye...

Uncheck the 'Auto Calculate' option to quickly ref...

How to use criteria that have already been transfo...

Should you use the Save transformed dataset when m...

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