Используя ваш код:
highchart() %>%
hc_chart(type = "bar") %>%
hc_title(text = "Example") %>%
hc_yAxis(title = list(text = ""),labels = list(format = "{value}")) %>%
hc_plotOptions(series=list(stacking='normal'),column = list( dataLabels = list(enabled = FALSE),
enableMouseTracking = TRUE)) %>%
hc_legend(enabled = FALSE) %>%
hc_xAxis(list(categories = c("0-4", "5-9"),
reversed=FALSE ),
list(reversed=FALSE,opposite=TRUE,
reversed=FALSE,
categories =c("0-4", "5-9"),
linkedTo = 0)) %>%
hc_yAxis(
labels = list(
formatter = JS("function(){ return Math.abs(this.value) + '%'; }"))) %>%
hc_add_series(name="neutral",id='neutral',color=c("#766A62"),data=list(2, 8)) %>%
hc_add_series(name="Neutral",linkedTo='neutral',color=c("#ffeeff"),data=list(-5, -3))
Изменены следующие строки:
hc_xAxis(list(categories = c("0-4", "5-9"),
reversed=FALSE ),
list(reversed=FALSE,opposite=TRUE,
reversed=FALSE,
categories =c("0-4", "5-9"),
linkedTo = 0)) %>%
hc_yAxis(
labels = list(
formatter = JS("function(){ return Math.abs(this.value) + '%'; }")))
Результат: