Linked Questions

1
vote
1answer
184 views

UpdateCursor if loop references next row in field [duplicate]

I am trying to populate a unique identifier field "STD_ID" using arcpy.da.UpdateCursor. The identifier would be an iterative 1,2,3 and would reset the iteration based on region ID in which the ...
1
vote
1answer
114 views

ArcPy cursor get value in next row [duplicate]

I am trying to populate Field B based on the value in Field A and the next value in Field A. I'm having trouble with the syntax for getting the "next" value in Field A. Here is my current code: with ...
2
votes
2answers
71 views

Populating values in field based off of another sorted field? [duplicate]

I'm working with a dataset of center pivot irrigation sites for my work and I have a unique ID for each land owner (Land_Owner_ID) as well as a number of center pivots associated with each owner (...
0
votes
1answer
29 views

Repeated labeling of random points within polygon? [duplicate]

I have created 3 random points within each of 27k polygons. I now want to label each of those 3 points as "A", "B", "C" within each polygon. Is there a quick/automated way to do this?
1
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0answers
48 views

Create sequential numbers based on field value using Python in the Field Calculator [duplicate]

I'm trying to modify the autoIncrement() python script to auto number based on another field. For example, I need the autoincrement to restart when the field "STD_ID" changes value. This is my attempt ...
2
votes
1answer
32 views

Applying sorted sequential numbers to only certain features using ArcPy [duplicate]

I would like to take sequential numbers up a level and only apply it to features of a certain type. Say I have two feature types, black and white features, and it's denoted by the field "Type". I want ...
0
votes
0answers
32 views

Field Calculate unique ID, based on another column, overriding FID / Object ID order [duplicate]

I have a couple thousand polygons across several hundred towns. I want the polygons within each town be labelled as such - first 3 letters of town name + _ + incrementing ID, so that they might look ...
0
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0answers
16 views

AutoIncrement based on Field Value [duplicate]

Is there any way to automatically restart the AutoIncrement () function based on the Field Value on ArcMap? I am developing a model in ModelBuilder to name parcels automatically. The polygons are ...
2
votes
2answers
523 views

Stratified sampling from point data in ArcGIS Desktop?

I have 8000 points with a zipcode number. Actually those are tweet points talking about zipcode, so multiple points have same number (e.g. 300 points with zipcode 32,805). I want to get 800 sample ...
1
vote
1answer
163 views

Select Lowest Values using Arcpy?

I have a table (Feature class in FGDB) with 2 columns, one is the "name" and the other is a list of year values as text "Value1". How do I obtain the lowest 5 values for EACH name? I am trying to ...
1
vote
2answers
76 views

Calculating frequency in Field Calculator

I have a table with many instances of duplicate values. My end goal is to have three columns: "The Value": a file name. most are non-unique "Duplicate Instance": "this is the 1st time this file name ...
0
votes
3answers
250 views

Selecting first distinct values and associated geometry using python

I have a layer I have created and assigned unique IDs. I only have a standard Arc license and require only one of each of the rows with a unique ID. Is there any way to select these using python? Or a ...
0
votes
1answer
196 views

Generating sequence of numbers based on existing attribute and spatial configuration of polygons using ArcGIS Desktop?

I have come across a very specific problem and I'm sure there must be a way to get around it with Python in ArcGIS, but can't figure it out on my own. The situation is as follows: The initial data ...
1
vote
1answer
249 views

Calculate feature ranks within ESRI table

I have a line feature class of streets that has been intersected with overlapping polygon "selection areas". For each selection area, I aim to calculate the rank (1-n) for the streets from longest ...
2
votes
2answers
45 views

Mapping data from related table using ArcGIS Desktop?

I have a polygon shapefile that contains multiple lakes. Some of these lakes have multiple residuals. I have all of the residuals for the lakes in an Excel file, and I want to show residuals for the ...

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