考虑从 rCharts/NVD3 示例页面中提取的图
p6 <- nPlot(uempmed ~ date, data = economics, type = 'lineChart')
p6
我试图让我的 y 轴显示百分比,所以我尝试了以下代码(在 R: interactive plots (tooltips): rCharts dimple plot: formatting axis 之后)但它返回一个空白页
p6 <- nPlot(uempmed ~ date, data = economics, type = 'lineChart')
p6$yAxis(outputFormat = "%")
p6
我做了一些研究并得到了以下结果:
p6 <- nPlot(uempmed ~ date, data = economics, type = 'lineChart')
p6$yAxis(tickFormat = "#! function(d) {return d*100 + '%' } !#")
p6
现在,我知道 0 个 javascript,并希望尽可能多地使用 R,至少在短期内如此。谁能告诉我
- 为什么第一种方法不起作用,以及
- 第二种方法是否是最好的方法
最佳答案
由于问题 1 的答案在@jdharrison 的评论中,我想我会用完整的代码示例快速回答问题 2,并在评论中展示实现同一目标的不同方法。
#turn off rstudio viewer
#since we will be making lots of charts
#we'll turn it back on at end
oldviewer = options("viewer")
options(viewer=NULL)
data(economics, package = "ggplot2")
#if we know we would like percent
#and R is our friend but javascript is not
#we could do some transformation in R
economics$uempmed <- economics$uempmed/100
p6 <- nPlot(uempmed ~ date, data = economics, type = 'lineChart')
p6
#then we could use d3.format just like the dimple example
#except dimple assumes the d3.format part so we just need "%"
#see https://github.com/PMSI-AlignAlytics/dimple/wiki/dimple.axis#tickFormat
#for more on d3.format
#see https://github.com/mbostock/d3/wiki/Formatting#d3_format
p6$yAxis( tickFormat = "#!d3.format('%')!#" )
p6
#however your method works fine also
p6$yAxis(tickFormat = "#! function(d) {return d*100 + '%' } !#")
p6
#but let's say we did not do the above transform
#dividing by 100
#here is how we could do it in javascript
data(economics, package = "ggplot2")
p6 <- nPlot(uempmed ~ date, data = economics, type = 'lineChart')
p6$yAxis(tickFormat = "#! function(d) {
//will change to .2% to show how to get two decimal
return d3.format('.2%')(d/100)
} !#")
p6
#turn rstudio viewer back on
options(viewer = oldviewer)
关于javascript - rCharts 格式化轴标签 : outputFormat,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24663820/