Calculate Network Statistics Matrix — network

This function is aimed at calculating network statistics of the neighborhood
network of each cell. The output is a network statistics matrix.

Usage

network_matrix(
  coordinate,
  index,
  radius = NULL,
  NN = NULL,
  edge,
  fun = centralities,
  length_output = 30,
  name_output = NULL
)

coordinate: a data frame containing cell indices and x and y coordinates which are labeled as index, x_center and y_center, respectively.
radius: the maximal radius length of a neighborhood. The cells whose distance to the center cell is larger than this length are not
included in the neighborhood.
NN: the number of nearest neighbors. If not NULL, only the nearest NN cells will be included in neighborhood.
edge: the maximal length of the network edge.
fun: the function which calculates the statistics of a network.
Two arguments are supposed to be in this function. The first one is a network object
and the second one is an index indicating the statistics of which vertex (cell) should be calculated.
The default function is centralities.
length_output: the number of statistics calculated in the argument fun.
The default value is 30, which is the number of statistics in the centralities function of this package.
name_output: the names of statistics calculated in the argument fun.

a network statistics matrix, each rows of it representing network statistics of the neighborhood network of a single cell.