ggraph_jk: Plot undirected graphs constructed from 2D data
In jakubkovac/Lori: Personal library of useful functions

Plot undirected graphs constructed from 2D data

ggraph_jk(
  data = NULL,
  matrix_g = NULL,
  x = colnames(data)[1],
  y = colnames(data)[2],
  label = colnames(data)[3],
  colormap = NULL,
  color = "edge",
  plot_points = T,
  color_points = NULL,
  color_lines = NULL,
  cex_p = 3,
  size = 0.5,
  matlab = F
)

`data`	The data to be displayed in this layer.
`matrix_g`	Matrix of edges in calculated graph. Could be a full matrix or sparse from the Matrix package.
`x`	Name of the first coordinate.
`y`	Name of the second coordinate.
`label`	Name of the column coresponding to ground truth in clustering. Could be omitted.
`colormap`	Colormap to color the vertices/edges of a graph.
`color`	A string indicating of what to color, using a colormap. Four options available: "none", "edge", "degree" and "wdegree". Degree uses colormap to color points based on the number of edges going to/from the given vertex. Wdegree calculates the sum of weights of edges in each vertex.
`plot_points`	boolean. Should we plot the vertices?
`color_points`	The chosen color for coloring points.
`color_lines`	The chosen color for coloring edges.
`cex_p`	Change the size of points.
`size`	Change the width of edges.
`matlab`	boolean. Should we use default MATLAB colors and try to replicate the ggplot theme?

## Edge coloring
data(spiraly)
data(Wfull)
ggraph_jk(spiraly,Wfull)

ggraph_jk(spiraly,Wfull,colormap = colormap::colormap(colormap = "hot", n = 256),cex_p = 1.5)

## exporting graph and changing it
g <- ggraph_jk(data = spiraly, matrix_g = Wfull, color = "degree",cex_p = 3)
g + theme(legend.position = c(0.9,0.2),legend.background=element_blank())

##coloring nodes based on the sum of all weights of edges connected to them.
g <- ggraph_jk(data = spiraly, matrix_g = Wfull, color = "wdegree",cex_p = 3,matlab = T,color_lines = "black")
g + theme(legend.position = c(0.9,0.2),legend.background=element_blank())