Figure 3
From: Statistical analysis of dendritic spine distributions in rat hippocampal cultures

Visualization of the linear network K-function. This figure clarifies what is meant by the quantities d ij , L T , ℓ T , , and which were used to compute the linear network K-function. Here d ij is the linear network distance shown by the gray line between points p i and p j . L T (in black) is the entirety of the single dendritic network and ℓ T is the length of L T . Similarly, (in blue dashed lines) is subset of the network where the distance between a point p i and any other point is ≤ t and is the length of . In this particular example there are 2 spines which fall within and would be counted in determining the empirical function value , however point p j falls outside this radius and would therefore not be counted.