R: Adjusting Labels in circlize diagram

Question

I have the code below which im trying to make into a circular diagram using the amazing package circlize

I have read the vigenette and admit some of it has gone over

Answer 1

I was wondering if there is a quick way to remove all the labels on my diagram including tick marks and just add back in AUDI, VOLVO and BMW in light grey at the same angle to the sector as per this example

You might try

chordDiagram(df[1:2], col = col[df$Customer.Sat], diffHeight = diffHeight[df$Customer.Sat], annotationTrack = "grid", preAllocateTracks = 1)
circos.trackPlotRegion(track.index = 1, panel.fun = function(x, y) {
  xlim = get.cell.meta.data("xlim")
  ylim = get.cell.meta.data("ylim")
  sector.name = get.cell.meta.data("sector.index")
  circos.text(mean(xlim), ylim[1] + .1, sector.name, facing = "clockwise", niceFacing = TRUE, adj = c(0, 0.5), col = "lightgray")
}, bg.border = NA)

which gives you