Questions tagged [duplication]
For questions related to creating, finding, or removing duplicate records or features.
152 questions
0 votes
1 answer
42 views
Blocking users from registering duplicate URLs on Survey123
I'm using ArcGIS Survey 123 to create a collaborative database containing articles regarding the socio-environmental impacts of renewable energies' implementation on the local inhabitants. One of the ...
- 416
0 votes
1 answer
84 views
Removing duplicate but not identical data using QGIS
I have a dataset of roads that i am trying to clean up and looking for suggestions on workflows that will reduce the manual process of find-and-remove. The dataset is the legacy result of merging a ...
- 1,089
2 votes
2 answers
114 views
Deleting duplicate rows by attribute from table using QGIS modeler
Base: csv file with content structured like this: "Role-ID","Role name","userid","name","name2","name3","email" Content example: &...
- 21
2 votes
1 answer
439 views
Removing duplicate data based on multiple attributes [closed]
I have a table created using tabulate intersection in ArcGIS Pro, that denotes the species records within each grid cell at certain resolutions e.g. Cell ID Taxon Name Grid Precision (m) 1 Erodium ...
- 21
1 vote
1 answer
96 views
Extract by location and attribute or two attributes
I have a geopackage with 25 million points and the little laptop that could. The attribute table has a speed and a location identifier for each point. We can call the fields "Speed" and &...
1 vote
0 answers
44 views
ArcGIS intersect lines except for identical geometry with themselves
ArcGIS Pro 3.2.1. I have streets that I'd like to turn into intersections. On occasion, there are duplicate street lines (same geometry) that have different names (using an alias table is currently ...
- 405
0 votes
2 answers
168 views
Removing duplicates values from QGIS Attribute table
I have some fields with the same values after that I need to remove them. Some of the values are duplicates after I merged values from different layers and grouped them using the same ID number. For ...
3 votes
3 answers
196 views
Deselecting duplicate records in QGIS Attribute table
Several SE-GIS posts describe how to identify duplicate records, such as Identifying duplicate attributes in field using QGIS. I would like to extend this concept by unselecting any duplicate records ...
- 7,938
2 votes
1 answer
145 views
Fix "folded" polylines using FME
I have a dataset with polylines. For some reason the polylines are drawn back and forth multiple times. You can regard the lines as folded. The number of lines the runs back and forth varies from line ...
- 121
1 vote
1 answer
63 views
Delete duplicate features by value and relative position in QGIS
I have a point layer with features of which some share the same date (fieldname: 'Datum' with format: "dd.MM.yyyy"). The date that is shared by some features is not a single specific one but ...
- 113
2 votes
1 answer
84 views
Compare field attributes
I am using ArcMap 10.8.2. I have two point layers from different sources which contain the educational facilities of Catalonia. Each layer may contain facilities that are not contained in the other ...
- 143
0 votes
1 answer
129 views
Geodatabse 'ghost' feature dataset and feature layer duplicates
Long story short, I reprojected my data into WGS 84 without realizing they would be exported into the same master source gdb, deleted the duplicates, but now see ghost duplicates of feature datasets ...
- 61
2 votes
3 answers
378 views
Remove partly overlapping geometries from service area in QGIS
In QGIS, Service area (from point) or Service area (from layer) geoprocessing tools create 1 resp. n multipart line features which (usually) contain many overlapping sections. Most of them can be ...
- 1,759
0 votes
0 answers
69 views
Merging multiple records into 1 record, group by field ‘group’
I have a point geometry file (GeoPackage) which I am working with in QGIS. It contains tens of thousands of records which discuss the topic 'Mineral occurrences'. Within this point file exist ...
- 29
1 vote
1 answer
80 views
Creating relation for duplicate lines
I have two datasets with some duplicate lines. I can select the duplicates with GRASS v.select: v.select ainput=map1 binput=map2 output=duplicates operator=equals or QGIS Select by Location: ...
- 178