Timeline for Finding nearest neighbor with smaller attribute value in QGIS for a huge dataset: make expression more efficient
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 17, 2021 at 9:13 | comment | added | Babel | Tested with 1694 points: with my expression, it takes 18:08 minutes, with your Python skript 3:15 min. So will now try to see if I can tweak to expression to come close to the skript. | |
| May 16, 2021 at 21:40 | comment | added | MrXsquared | Yes its freezing qgis while running. The script could still be improved e.g. by using tasks or by limiting the nearest neighbors. | |
| May 16, 2021 at 21:40 | comment | added | Babel | It worked, fine, thanks!! Will give it a try for some more features and see with whicht method I get best performance. | |
| May 16, 2021 at 17:32 | history | edited | MrXsquared | CC BY-SA 4.0 | added 100 characters in body |
| May 16, 2021 at 17:23 | history | edited | MrXsquared | CC BY-SA 4.0 | added 202 characters in body |
| May 16, 2021 at 17:10 | history | answered | MrXsquared | CC BY-SA 4.0 |