Questions tagged [mean]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1 vote
0 answers
33 views

Calculating mean NDVI of two different locations

I am trying to calculate mean NDVI of two location over a chart. I combined the two shapefiles successfully. Then I try to generate time series chart for both locations but only I obtained for one ...
user avatar
2 votes
1 answer
52 views

Calculating mean distribution of point locations using field values in QGIS

I have a layer of point locations distributed country-wide. I would like to create a new point layer that shows the mean or center of mass of the points, but grouped based on the value of a field, ...
user avatar
  • 21
1 vote
1 answer
74 views

Calculating mean of full pixels within a box in ArcMap or ArcGIS Pro?

I am trying to calculate the mean of pixels within a boundary. I am able to find the mean using the calculate Statistics and Zonal Statistics as a table GP tool in ArcMap. But, the issue is I would ...
user avatar
1 vote
0 answers
69 views

Build VRT to merge overlapping rasters always takes max values?

I'm attempting to merge two overlapping rasters from the same source with the same resolution. I would like the overlapping pixels to take the average value of the two overlapping pixels. When I ...
user avatar
  • 491
4 votes
2 answers
122 views

Mean coordinates from several columns

I have a delimited text layer created from table with a few hundred coordinates (lat/long) in columns A and B and several hundred values associated with these coordinates in columns C to XXX. Now, I ...
user avatar
  • 111
3 votes
1 answer
179 views

Calculate mean for each band in raster

I'd like to re-visit this answer given by Aaron that uses gdal and numpy to calculate the mean value of each band. Issue 1: With large TIFFs ~ 5-15GB, I am running into a memory error. I am wondering ...
user avatar
  • 896
2 votes
1 answer
61 views

Calculating mean value of polygons based on attributes of point layer in QGIS

I am working with QGIS to compute the annual burned area of my study area in Chile. I have two different layers. One polygon layer which is a 1km x 1km grid of my study area. The only information ...
user avatar
0 votes
0 answers
51 views

Overlapping two maps and extracting the mean value from overlapped range in R

I want to overlap a species distribution range on the world map which has values, and extract the mean value within the species range. I have 1500+ species distribution range in a gdb file so I try ...
user avatar
  • 1
0 votes
1 answer
35 views

Error in calculation of raster mean

I have a list of files corresponding to MODIS Aerosol Optical Depth (AOD). A part of list I would like to provide as sample is as follows The sample list of files is: MOD04_L2.A2020153.0445.061....
user avatar
  • 17
1 vote
1 answer
257 views

Iterating to calculate mean NDVI and mask pixels having greater than mean NDVI value of each image in image collection using Google Earth Engine

I am working on Sentinel -2 image collection over my study region in Google Earth Engine. I can calculate Mean NDVI for an image using ee.Reducer.mean() and mask pixels using update mask .gt(mean ...
user avatar
  • 77
0 votes
0 answers
21 views

Output from Mean coordinate to input of shortest path in model

I'm building a model in QGIS 3 and I want to be able to "feed" the output of Mean Coordinate to the input "Start point" of Shortest Path. The issue is that in Shortest Path I ...
user avatar
2 votes
1 answer
150 views

Getting the mean value of each row for the final column in QGIS

I am trying to calculate the mean/average of all the values in a row to obtain the final value i.e., "IRAT". How can I calculate it automatically using a field calculator in QGIS? for e.g., ...
user avatar
2 votes
2 answers
62 views

Calculating average of columns of singleparts in QGIS

I have singleparts (pipes) with name and depth. I need to count the average depth based on name. So for e.g. pipe 'cont500str1' has average depth (2,93+2,03+1,99+1,17+2,12)/5 = 2,048. The complication ...
user avatar
  • 405
1 vote
0 answers
311 views

Median vs mean in GEE

I applied the cloud masking on Sentinel 2 imagery in GEE. The original image collection without masking clouds is this: First I tried the script exactly as written at the bottom of this page Sentinel-...
user avatar
  • 451