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1 vote
2 answers
3k views

Getting max value from field in Field Calculator of ArcMap

I'm working from a geodatabase in ArcMap 10.5, and using Model Builder. I currently have a field with values that range from 0 to 30 and I want to convert that to a 0-10 scale. The idea was to use a ...
adriasf's user avatar
  • 67
0 votes
1 answer
63 views

Combine Two Fields Into One

I joined two tables to a shapefile and the output table has a field from each. Both fields represent the same thing so I'd like to combine them into one. You can see a clip of my fields below, where ...
Shelby G.'s user avatar
  • 368
2 votes
1 answer
192 views

Splitting ID number along hyphens and creating new field with only parts of ID In Field Calculator?

I have a shapefile with polygons and each polygon has an ID number that follows a pattern like this: SMP_ID 1077-1-1 8-2-2 1281-1-3 304-2-1 In have created a new field and I need to populate it ...
Shelby G.'s user avatar
  • 368
0 votes
3 answers
289 views

Converting VB codeblock to Python in ArcGIS Field Calculator?

I have created a tool in Model Builder to plot telecoms data - the user clicks a point on the map, enters a radius and enters an azimuth. The model then creates the buffer and cuts a segment out of ...
C.Clarke's user avatar
3 votes
2 answers
371 views

Refering to (Joined) Field Names in arcpy in Field Calculator

I'm trying to update the locations of a point FeatureClass using a table. I have joined the table to the featureclass, and am attempting to use Field Calculator to update the SHAPE field. I found ...
Darren Cope's user avatar
  • 6,636
2 votes
0 answers
116 views

Shape Count vs. Record Count Mismatch

First of all, I really could not think of a good title for this question, so feel free to modify it. I keep encountering an error using ArcMap 10.5.1. I'll have a table open, to which I add a field. ...
user109434's user avatar
1 vote
1 answer
3k views

Field calculator to calculate if field contains certain text

I have a field (WS_Type in the screenshot) that I want to use to calculate values based on the text within the field. The number of occurrences of each WS_Type in the field is not important, but the ...
nso921's user avatar
  • 63
3 votes
2 answers
447 views

Calculate field by comparing a field value to two other fields as min and max

Using ArcMap 10.5, I'm trying to compare recommended fire regimes for different veg types (min/ max fire frequency) with actual burns from the past 10 years to see whether they are in or out of regime....
Op.Ivy's user avatar
  • 91
0 votes
1 answer
334 views

Field calculator to automatically update fields in ArcGIS Desktop?

Trying to get an attribute table to update based on the values in their corresponding rows. for example - If I have a selection of fields whose value is 3, I want the corresponding fields to auto ...
Allison Hockey's user avatar
4 votes
1 answer
228 views

Field Calculator - use a string field to determine how a calculation is applied to a numeric field

I have a String field ('Prefix') and a Double field ('Result'). I am trying to group data by a specific range, <0.002, 0.002 to 0.07, >0.07, however some values have a '<' or '>' prefix ...
Jamie's user avatar
  • 43
1 vote
1 answer
64 views

Using Python codeblocks in ArcGIS to evaluate if all values in many columns is 0

I'm working on zoning data and I've been evaluating if the percentage for various zoning is more than 90% of the area, so I can define it as that zone in a new field, like so: def ifBlock(RS, RM): if ...
clowdyday's user avatar
1 vote
1 answer
638 views

Multiple Conditionals String with ArcGIS Field Calculator?

I am trying to use Field Calculator to use a multiple conditional based on a string in another field of the same attribute table. I have written the code below, but without success. Pre-Logic Script ...
Focha's user avatar
  • 13
2 votes
2 answers
2k views

Use field calculator to return the word after "unit"?

Working on ArcMap Desktop 10.5; the file in question lives in a file gdb. I have a polygon layer with a field of full property addresses (string) from which I need to extract ONLY the unit number, to ...
amarshall's user avatar
3 votes
1 answer
2k views

Python Max Function in Field Calculator for Date values

I have 4 fields with Date Time values, and created a new field (Date type as well) which takes the most recent date from these 4 fields. I have tried using the Max python in the field calculator to ...
Purplepeopleeater's user avatar
3 votes
1 answer
3k views

Field Calculator error: "calculated value is invalid"

I'm getting the following error when trying to calculate a field: I'm just trying to calculate all the selected records to equal a value I specify, a simple two-letter zoning code. So the field ...
Matt Leonard's user avatar

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