Calculate variance-to-mean ratio for famdisp point pattern

Assignment Help Basic Computer Science

Reference no: EM133399098

Assignment:

I am trying to test whether there is spatial clustering in incidents of family disputes in New Haven, CT. I loaded the 'famdisp' point layer and the required libraries with the code below in R:

library(GISTools)

library(raster)

data(newhaven)

plot(blocks)

plot(famdisp, add=T, col="red", pch=16, cex=0.6)

Question:

Using R, please assist with a code to calculate the variance-to-mean ratio (VMR) for the famdisp point pattern, and then use a chi-square test to determine the probability of observing a point pattern with at least this degree of clustering under IRP/CSR. When the VMR is calculated, display a quadrat layer from the "blocks" polygon layer with a quadrat size of 1,000 ft.

Reference no: EM133399098

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