dm<-matrix(c(11975,1951,8010,1013,5871,10048,16145,990,8916,2060,8090,940,2868,6171,8045,6907), 4,4)
labels<-c("Group1", "Group2", "Group3", "Group4")
json<-jsonMatrix(dm, labels)
D3Chord(json, file_out="chord.html")
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