使用Joshua Kunt的Highcharter R package,我正在尝试添加自定义工具提示和格式编号,以便成千上万的逗号分隔符。如果我不自定义工具提示,当我使用以下代码时,Y轴和工具提示格式正确:
snow <- read.csv("https://gist.githubusercontent.com/smach/d4188d200b465cba822405c323f1501c/raw/58c3785c34304ccc5dbcef632d3acb9d6dbad40c/BosChiNYCsnowfalls.csv", stringsAsFactors = FALSE)
library("highcharter")
hcoptslang <- getOption("highcharter.lang")
hcoptslang$thousandsSep <- ","
options(highcharter.lang = hcoptslang)
highchart() %>%
hc_chart(type = "line") %>%
hc_title(text = "Snowfall") %>%
hc_xAxis(categories = snow$Winter) %>%
hc_add_series(data = snow$Boston * 10, name = "Boston") %>%
hc_yAxis(labels = list(format = "{value:,.0f}"))
但是,一旦我添加了像
这样的格式化程序hc_tooltip(formatter = JS("function () { return '<b>' + this.series.name + '</b><br /> ' + this.point.y + ' <br />' + this.x;}"))
工具提示编号不再包含逗号。我认为我需要在格式化程序中对this.point.y
做一些事情,但我尝试过的一些事情并没有奏效。有谁知道我需要添加到格式化程序函数,以使工具提示也显示y值的逗号?感谢。
答案 0 :(得分:1)
您可以尝试在Highcharts.numberFormat
功能中包装this.point.y
。您可以在API链接中阅读它或阅读此源描述:
/**
* Format a number and return a string based on input settings.
*
* @function #numberFormat
* @memberOf Highcharts
* @param {Number} number - The input number to format.
* @param {Number} decimals - The amount of decimals. A value of -1 preserves
* the amount in the input number.
* @param {String} [decimalPoint] - The decimal point, defaults to the one given
* in the lang options.
* @param {String} [thousandsSep] - The thousands separator, defaults to the one
* given in the lang options.
* @returns {String} The formatted number.
*/
H.numberFormat = function(number, decimals, decimalPoint, thousandsSep) {
// ...
}
在我的尝试中,我包括两个第一个参数,使用-1来保留小数位数。这意味着你应该对这个格式化程序没问题:
hc_tooltip(formatter = JS("function () { return '<b>' + this.series.name + '</b><br /> ' + Highcharts.numberFormat(this.point.y, -1) + ' <br />' + this.x;}"))