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Rock_Doc in Spatial Analyst3 days ago (Show more Show less)

Random Forests in Desktop 10.7 vs Pro

I have been looking at the documentation for the Train Random Trees Classifier for Desktop 10.7 and the documentation for the Forest-based Classification and Regression tools in Pro and have a couple of questions that I hope someone may be able to answer. There is more documentation on the RF tool for Pro, however I am trying to do this on Desktop… (Show more Show less)

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Dan_Patterson

(to Rock_Doc) 3 days ago (Show more Show less)

Don't know... but if the tool has a history and the Spatial Statistics extension is the same, perhaps, examine one run, because maybe not all the information is revealed during a run... worth a shot anyway You can also access the messages for a previous run of the Forest-based Classification and Predictiontool via the Geoprocessing history. The…

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marklimb in Spatial Analyst1 year ago (Show more Show less)

How to count the adjacent cells that have a different value in a raster dataset?

Hi, I'm using a raster dataset and I'm trying to determine a value for land use adjacency as used by Stathakis & Tsilimigkas (2014) (Measuring the compactness of European medium-sized cities by spatial metrics based on fused data sets. International Journal of Image and Data Fusion, 6(1), 42-64. doi:10.1080/19479832.2014.941018) This… (Show more Show less)

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mppmry (to marklimb) 4 days ago (Show more Show less)

What a great saga to find! Thanks for updateing with the finished tool. I am working in ArcMap 10.7 but I would like to try and execute this tool as well. Could you provide some guidance on how to use the three tools included? Order or operations, etc. Thanks.

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geke0001@stud.slu.se_gis_slu in Spatial Analyst4 days ago (Show more Show less)

Kernel density units for line data

Is it true that when performing kernel density analysis with line data, the values on the output raster will be calculated as units of length per area units (e.g. m/m^2)?

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Dan_Patterson

(to geke0001@stud.slu.se_gis_slu) 4 days ago (Show more Show less)

you are using projected data I hope. from the help How Kernel Density works—Help | ArcGIS Desktop Now if you want to use a multiplier, there are options You can control the density units by manually selecting the appropriate factor. To set the density to be in meters per square meter (instead of the default of kilometers per square…

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shaghayeghakbarpour in Spatial Analyst5 days ago (Show more Show less)

The average directional distance or Width inside

Hi Folks, I am trying to calculate the directional distance of the yellow regions( the distance of the edges in sidebthe red lines) shown in the figure by using the lest cost path. I want the width of the inside polygon. What I think: the only solution is I need to use a horizontal raster uniformly equal to 0,45,90,000,360 across the entire… (Show more Show less)

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Nathan_Fleischman in Spatial Analyst2 weeks ago (Show more Show less)

ERROR 999999: Error executing function Failed to execute (Nibble)

I am trying to use the Nibble tool to clean NoData in three Digital Elevation Models. The problem is that for the first DEMs it works But the last one keeps giving me this error: ERROR 999999: Error executing function Failed to execute (Nibble). I tried in both ModelBuilder and manually and I still get the same error. It occurs during the… (Show more Show less)

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curtvprice

(to Nathan_Fleischman) 6 days ago (Show more Show less)

Is there anything different about the third? 99999 errors can happen for many reasons, one is pathnames that are not ideal (short, start with a letter, no spaces in path). The other thing to check is whether the input DEM is integer.

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geke0001@stud.slu.se_gis_slu in Spatial Analyst3 weeks ago (Show more Show less)

how to calculate overlapping rasters

Hi, There was a similar question 3 years ago, but still I have some difficulties executing a code in Raster Calculator. So, I have 2 rasters : 1. "Seal Density", with 5 classes: 0, 1, 2, 3, 4 2. "Fishing Intensity", with 10 classes: 0, 3, 6, 11, 19, 28, 38, 48, 59, 73 I arbitarily labelled the classes myself based on the ranges (provided by… (Show more Show less)

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curtvprice

(to geke0001@stud.slu.se_gis_slu) 6 days ago (Show more Show less)

You could also use the Combine tool and add and calculate a new field in the resulting raster attribute table. The output of Combine gives you every unique combination of inputs. Raster outputs can only be numbers, but fields can be text. So if you Combine integer grids X1 and X2 you'll have Long fields X1 and X2 in the output table. You…

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fnisiyama in Spatial Analyst2 weeks ago (Show more Show less)

ArcMap 10.6 shutting down - Topo to Raster (Arcpy)

Hi, I'm quite new in using ArcPy and have been struggling with it. I was trying to run a python script that has a loop containing the Topo to Raster tool. The code runs smoothly just until this tool is executed, and at this moment ArcMap suddenly shuts down without any message. After a couple of tests I discovered that the script runs smoothly… (Show more Show less)

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Dan_Patterson

(to fnisiyama) 1 week ago (Show more Show less)

sys.executable ... will tell you the location of the python that is running and it should be the version of python that is installed for the 64 bit. I can't test for you since I don't use arcmap and haven't used python 2.7 in years (switch to Pro... python 3.6.8 is used and 3.9 is out in first version...)

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gpalmer_geo92 in Spatial Analyst2 weeks ago (Show more Show less)

Question about two rasters and how to get values off one and onto another

Hi all, Background information on my project: I calculated a slope raster from a DEM mosaic. I also have a cross section polyline that has segments with different attributes (i.e. Channel, Marsh, Tidal Channel, etc) and I want to be able to see what the slope is at these different geomorphic features to then see how these slopes change as we go… (Show more Show less)

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curtvprice

(to gpalmer_geo92) 1 week ago (Show more Show less)

Another approach is to run Zonal Statistics As Table, using your polylines as zones and your slope raster as the value raster. If you do this be sure and set the environments to rasterize at the cell size of the slope raster (or smaller, if any of your polyline segments are less than the slope raster cell size).

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Nlog10 in Spatial Analyst1 month ago (Show more Show less)

extract by attributes not working reliably

I am working on a project in ArcMap. Sometimes the Spatial Analyst > Extract By Attributes tool will just...not work on my classified rasters. Occasionally I can exit the program, immediately open it again, and all of a sudden the Extract By Attributes tool works again. It’s just super frustrating because the tool is really unpredictable, and… (Show more Show less)

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curtvprice

(to Nlog10) 1 week ago (Show more Show less)

Elle, Is background processing enabled? I have found sometimes the layer doesn't get passed successfully from ArcMap to the background geoprocessor (or back). This can cause all kinds of unexpected error messages.

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madtraveller in Spatial Analyst2 months ago (Show more Show less)

How to efficiently remove tiny lines from a multi-line feature?

Happy Friday everyone, I have a multi-line shapefile which was clipped from NHDPlusFlowline feature class (picture below and attached) https://www.usgs.gov/core-science-systems/ngp/national-hydrography/nhdplus-high-resolution The problem is there are so many tiny little lines together with the main canals. I want to find a good way to… (Show more Show less)

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madtraveller (to curtvprice) 2 weeks ago (Show more Show less)

Thank you Curtis! I wasn't aware of that. Let me look at the attribute table

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