Timeline for How to Populate new field using expression containing MAX value from another field in ArcGIS attribute table using field calculator?
Current License: CC BY-SA 3.0
16 events
| when toggle format | what | by | license | comment | |
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| Apr 10, 2022 at 12:00 | history | tweeted | twitter.com/StackGIS/status/1513124641644158981 | ||
| Apr 5, 2022 at 7:24 | history | protected | CommunityBot | ||
| Apr 5, 2022 at 3:42 | comment | added | faisal arsad | with fieldcalculator "phyton" and show codeblock maximum = max(row[0] for row in arcpy.da.SearchCursor(fc, ['X'])) with arcpy.da.UpdateCursor(fc, ['X','Y']) as cursor: for row in cursor: row[1] = row[0] / maximum cursor.updateRow(row) notif geoprocessing result : "NameEror : name 'Y' is not defined PLEASE HELP THANKS | |
| Feb 22, 2017 at 16:07 | comment | added | user | I am a beginner in python. For calculating maximum value from numeric field I need use this part of code: maximum = max(row[0] for row in arcpy.da.SearchCursor(fc, ['X'])) But after insertion into the field calculator an error message appears. In field calculator I chose python parser. Any solution? Thank you | |
| Feb 9, 2015 at 22:56 | answer | added | Jelle | timeline score: 3 | |
| Aug 10, 2014 at 22:26 | vote | accept | GeoLuCa | ||
| Aug 9, 2014 at 21:34 | answer | added | Aaron♦ | timeline score: 4 | |
| Apr 4, 2014 at 7:57 | answer | added | Alešinar | timeline score: 0 | |
| Apr 4, 2014 at 7:20 | history | edited | PolyGeo♦ |
edited tags
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| Mar 31, 2014 at 10:19 | history | edited | PolyGeo♦ | CC BY-SA 3.0 |
Turned title into question; edited tags
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| Mar 24, 2014 at 16:23 | history | migrated | from stackoverflow.com (revisions) | ||
| Feb 7, 2014 at 13:25 | comment | added | GeosDK | Eventually I resorted to looking for the max value by ascending the values in field X and using that value to the denominator in the field calculator. However, I would still like to find out whether it would be possible for the field calculator to populate a field automatically by searching the cursor for the max value (I know this is possible when looking for max values in multiple fields, but can't find the same for a single field) | |
| Feb 7, 2014 at 13:24 | comment | added | GeosDK | If I use VB Script it throws an error saying "There was a failure during processing, check the Geoprocessing Results window for details" (i.e. Error 999999 Error exectuing function). I've tried adding commas - different sorts -, checking spaces etc. Nothing works. | |
| Feb 7, 2014 at 13:19 | comment | added | GeosDK | If I use the code above with Python script Y=!X!/max(!X!) it gives me 1 as the result for all the fields as it replaces !X! with the numerical value for each respective row (basically dividing with itself rather than using the max value in field X as the denominator. | |
| Feb 7, 2014 at 9:40 | comment | added | Ansgar Wiechers | Please show your code and explain what isn't working as you expected. Do you get an error? If so, what is it? | |
| Feb 6, 2014 at 23:00 | history | asked | GeoLuCa | CC BY-SA 3.0 |