Questions tagged [kernel-density]

A raster-based operation that spreads point values throughout their neighborhoods.

9
votes
4answers
34k views

Measuring area of raster classes?

Are there any tools or methods in ArcMap that can measure the area of each level of the kernel density output? Note this is just a kernel density plot (not a shape file or polygon). Kernel Density ...
4
votes
2answers
745 views

95 percent volume contour

I generated, from point data, a kernel density map using GRASS, and I would like to identify the 95% volume contour in it. Is it possible in GRASS?
3
votes
1answer
671 views

95% contour from kernel density estimates [closed]

I am looking to calculate the 95% volume contour from a kernel density estimate to estimate an animal's home range. Normally, I work in R, but I calculated the "kernel density estimate" in ArcGIS so ...
3
votes
1answer
1k views

Kernel vs Point density [closed]

Can someone give me an example each where these two tools would be appropriate to use. I kind of understood what each of them does but can't seem to figure out examples where one would be more ...
1
vote
0answers
206 views

Showing specific kernel density contours using QGIS Animove?

This is more a graphics question (I calculated all the important stuff in R), but is it possible to edit the Kernel Density Estimation (KDE) output layers given by the Animove plugin to show only the ...
5
votes
1answer
503 views

How to use GRASS v.kernel to calculate point densities along a network?

In a road network, I need to select the segments where a minimum of 5 dots occur (1 dot = 1 address) over a distance of 100 m (the image attached illustrates my question). I'm trying to use GRASS v....
2
votes
1answer
135 views

How to explain the spatial relation of forest loss hotspots with several others variables

I am doing a research in categorizing and ordering of the factor affecting/fostering the creation of the forest loss hotspots. I have following data. Point location of forest losses from which i ...
1
vote
3answers
951 views

Calculate employment density using LEHD Census Data in ArcGIS

I have data from the Census Bureau's LEHD files that record number of jobs within blocks groups. I want to convert the number of data in the LEHD into a feature that I can use to calculate block ...
-1
votes
1answer
200 views

Automating Isopleths in GME?

Is there an easy way to batch generate isopleths in GME? I have a set of 109 different kernel density estimates that I need to make 50% and 95% isopleths for, but in the interest of saving time and ...