Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Geographic Information Systems

Questions tagged [summarizing]

The tag has no usage guidance.

19 questions
info newest frequent votes active unanswered
0
votes
0answers
9 views

Drawing polygon and summarizing values in map on Portal for ArcGIS?

I have a map application created in Portal for ArcGIS. I have a points layer in the map. Each point has a numeric value. I want to be able to draw a polygon on the map, containing some of the points. ...
0
votes
1answer
40 views

Aggregating or summing field by two or more criteria using QGIS?

I am using QGIS 2.18. I'm trying to sum fields based on two criteria with filed calculator. I have the "ID" field and the "ZONE" field (ID is secondary key, repited for other table). ZONE field has ...
2
votes
1answer
69 views

Compute mean attribute value of point features in same category?

I've got a point shapefile wih a column with categorical variable and a column with numerical values like the one below Point | crop | NDVI 1 | wheat | 0.9 2 | barley | 0.7 3 | ...
1
vote
2answers
42 views

Summarizing one field using another as summary statistic using ArcPy?

I'm trying to replicate, using arcpy, the 'right-click - Summarize' function in ArcMap. I want to specifically summarize column 'A' of my attribute table (this is a point layer), to get the count. But ...
1
vote
0answers
40 views

Summarizing string values in QGIS 3.0 for a Point layer?

Is there a way to summarize string attributes using QGIS 3.0 without having to export to excel? I have a point layer as an output of a spatial join. I would like to summarize the information so that ...
1
vote
2answers
70 views

Summarizing (Statistics_analysis) with field list in ArcPy?

I want to summarize a field in 5th order in the shapefile. For that reason, I write a script below output_lines = r"C:\Outputs\lines.shp" sum_table = r"C:\Outputs\summary.dbf" Listfield = arcpy....
3
votes
3answers
971 views

What is the equivalent of summarize field in QGIS

In ArcMap, user can create a table that groups the field values using summarize field tool (as shown below) How can I create a table that summarizes field values in QGIS?
1
vote
2answers
128 views

Save summary to text file in R

I have more than 2000 TIFF files of an NDVI index. I would like to check if I made it properly and if all of values are between -1 and 1. How can I save everything to a text file to check max and min ...
3
votes
2answers
173 views

Qgis Summary of number of points

I have a csv with approx 1.3 million places. Some of these have the same coordinates. My question is: Is it possible to get visible summary on the point if it has maybe 100 points in the same place. ...
1
vote
0answers
21 views

Include polygons that don't contain line segments in Summarize

I would like to get a summary of road lengths per township, but also include townships that have no roads. Using the first answer from this question Calculate line distances inside of polygons using ...
0
votes
1answer
70 views

Sum values depending from another field value with Python

I did a python script to do a query from the UF field from my attribute table. The code is very simple and works well. The output show me a map with the selected values. Now I neeed to sum the values ...
0
votes
0answers
67 views

Grouping polygons by summing up a field

I currently have a "BUILDING" layer(polygon) that has coordinates and a "population" field, I want to automatically create bigger polygons or getting them into groups so that each new polygon(or group)...
4
votes
1answer
274 views

QGIS - point to raster - Summing attributes as value of raster

I'm trying to produce a raster layer. The aim is to show the summed heat consumption of every cell (100*100m). I created an point layer with all buildings and an attribute with their heat ...
3
votes
1answer
371 views

Summary Statistics with multiple case fields not working [closed]

While trying to calculate summary statistics in a table in a GDB, i get the following error: ERROR 999999: Error executing function. The table was not found. [OutputStats] Failed to execute (Summary ...
1
vote
1answer
140 views

Merge records with identical ID in ArcGIS Desktop?

I need to merge records with the same PIN, and populate the null fields with values if they exist. The highlighted ones in the image are what I'm talking about. This is just a test run; for the ...
3
votes
2answers
61 views

How to add a rasterised line feature to raster via raster calculator in ArcGIS

I want to sum different layers (Population Density, Land Use, Rivers, Roads) to derive an Exposure map for landslides using the raster calculator in ArcGIS. First I converted the two line shapes (...
1
vote
1answer
69 views

Summarizing Data in ArcGIS Desktop?

I need to summarize a set of incident data by several different stations. I have a set of five stations. The stations code emergency response using 10 incident codes, 1 being least severe and 10 being ...
2
votes
3answers
9k views

Summing all values with same ID in ArcGIS Desktop? [duplicate]

I did a one to many spatial join and ended up with an attribute table as follows: Lets say we have 5 different IDs that have numerical values in 500 rows. I need to sum the values for each ID, and end ...
1
vote
2answers
3k views

Summarizing data using ArcGIS Desktop?

I am relatively new to GIS and am facing some difficulties trying to summarize/pool data together. I've attached the file to make it easier. FID_pc11_1 (Refers to postcode identifier) and count ...