change tick labels in sunflower plot in R -

say have following data

a <- c(1,1,1,2,2,3,3,4,4,4) b <- c("a","b","a","c","c","a","c","d","c","a") x <- data.frame(a,b)  sunflowerplot(x$b ~ x$a,               main = "sunflower plot",                xlab = "type a",               ylab = "type b",               size = 0.25, cex.lab = 1.5, mgp = c(2.5,1,0)) 

then referring link want change vertical ticks factors of b

with refernce website

axis , text editing

how 1 use code change labels

axis(2, at=null, labels=c("a", "b", "c", "d"))  

use yaxt argument suppress y-axis in sunflowerplot(). see ?par:

yaxt

a character specifies y axis type. specifying "n" suppresses plotting.

sunflowerplot(x$b ~ x$a,               main = "sunflower plot",                xlab = "type a",               ylab = "type b",               size = 0.25, cex.lab = 1.5, mgp = c(2.5,1,0),               yaxt="n") axis(2, at=1:4, labels=c("a", "b", "c", "d"))