rCharts餅圖 - 自定義工具頂部

Question

我試圖自定義rCharts nvd3餅圖的工具提示，但是當我使用下面的代碼時，圖表不顯示。我想知道是否調整nvd3餅圖工具提示的工作方式與其他nvd3圖表不同？任何有識之士將不勝感激！

這裏是我跑的代碼：

pie.sum$CATEGORY = c('Cat1','Cat2','Cat3','Cat4') 
pie.sum$VALUE = c(124,55,275,20) 
pie.sum$PERCENT = round((pie.sum$VALUE/sum(pie.sum$VALUE)) * 100,2) 

n3 = nPlot(x = "CATEGORY", y = "VALUE", data = pie.sum, type = "pieChart") 
n3$chart(tooltipYContent = NA, tooltipYContent = NA) 
n3$chart(tooltipContent = "#! function(key, x, y, e){ 
return 'Category: ' + x + 
' 
Value' + y + 
' 
% of value: ' + e.point.PERCENT 
} !#") 
n3$set(width = 800, height = 500) # mk changed width to 800 and height to 500 
n3 

Answer 1

你可以這樣做：

pie.sum = data.frame(CATEGORY = c('Cat1','Cat2','Cat3','Cat4'), 
        VALUE = c(124,55,275,20)) 
pie.sum$PERCENT = round((pie.sum$VALUE/sum(pie.sum$VALUE)) * 100,2) 

library(rCharts) 
n3 = nPlot(x = "CATEGORY", y = "VALUE", data = pie.sum, type = "pieChart") 
n3$chart(tooltipContent = "#! function(key, y, e, graph){return '<h3>' + 'Category: ' + key + '</h3>' + '<p>'+ 'Value ' + y + '<br>' + ' % of value: ' + e.point.PERCENT} !#") 
n3$set(width = 800, height = 500) # mk changed width to 800 and height to 500 
n3