vizHeatmap — vizHeatmap • FCtools

Visualizing brain connectivity matrices with heatmaps

Usage

vizHeatmap(
  data,
  hot = "#F8766D",
  cold = "#00BFC4",
  mid = "white",
  ncol,
  nrow,
  filename = "heatmap.png",
  colorscheme,
  line.color = "black",
  title,
  limits,
  title.size = 12,
  legend.title.size = 8,
  legend.text.size = 7,
  line.width = 0.3,
  width = 1000,
  height = 1000,
  leg.size = 200,
  colorbar_title = "Edge Strengt"
)

Arguments

data: a matrix of edge values with 4005, 7021, 23871 or 30135 columns
hot: color for the positive connections. Set to #F8766D by default.
cold: color for the negative connections. Set to #00BFC4 by default.
mid: color for the mid point of the color scale. Set to white by default.
ncol: number of columns in the plot. Not used for single row data
nrow: number of rows in the plot. Not used for single row data
filename: output filename with a *.png file extension. Set to "heatmap.png" by default
colorscheme: an optional vector of color names or color codes to color code the networks.
line.color: color parameter for grid lines dividing the connectome in to networks. Set to "black" by default.
title: a vector of strings to be used as title
title.size: size parameter for the title. Set to 12 by default.
legend.title.size: size parameter for the legend title. Set to 8 by default.
legend.text.size: size parameter for the legend text. Set to 8 by default.
line.width: line thickness parameter for grid lines dividing the connectome in to networks. Set to 0.3 by default.
width: width (in pixels) of each heatmap. Set to 1000 by default. Not used for single row data
height: height (in pixels) of each heatmap . Set to 1000 by default. Not used for single row data
leg.size: height/width (in pixels) of legend, in pixels. Set to 200 by default.
colorbar_title: title for the colorbar legend

Value

outputs a .png image

Details

This function takes a matrix (NROW=number of edges in the connectome; NCOL=number of edges in the connectome) of edge values and visualizes the edge-to-edge connectivity with multiple connectograms

Examples

if (FALSE) {
data=data=runif(7021,min = -1,max=1)
vizHeatmap(data=data)
}