In hongbo-yang/BangdiwalaChart: Bangdiwala Chart Function

Load The Package

Install the package from GitHub:

# install.packages('devtools')
devtools::install_github('hongbo-yang/BangdiwalaChart')

Load the package.

library(BangdiwalaChart)

Information on Bangdiwala Chart

Constructed using "The agreement chart" by Shrikant I Bangdiwala. To learn more about Bangdiwala Chart, see http://www.stat.ncsu.edu/information/library/mimeo.archive/ISMS_1988_1859.pdf, and book: http://www.utdallas.edu/~pkc022000/agreement_book/ chapter 12: Categorical Data.

Example

Multiple Sclerosis Data

MS Patients data (New Orelans and Winnipeg patients combined). For original data, see: (1) Westlund, K. B. and Kurland, L. T. (1953). Studies on multiple sclerosis in Winnipeg, Manitoba, and New Orleans, Louisiana I. Prevalence; comparison between the patient groups in Winnipeg and New Orleans. American Journal of Hygiene 57, 380–396. (2) MSPatients in vcd R package.

library(BangdiwalaChart)
data.x <-matrix(c(43, 36, 12, 4,
                  8, 22, 27, 9, 
                  0, 7, 8, 7, 
                  1, 0, 10, 24), nrow=4, byrow=FALSE)
dimnames(data.x) <- list("neurologist 1 rating"=c(1:4),
                         "neurologist 2 rating"=c(1:4))
data.x <- as.table(t(data.x))       

bangdiwala_chart(x=data.x, main=NULL, add.B.hat=FALSE)