R-如何在弹出窗口中粘贴同一变量的多列(传单) [英] R- how to paste multiple column of same variable in popup (leaflet)

问题描述

我有一个包含4行和几列的数据集，分别是国家/地区，位置，匹配次数，纬度，经度. 可重现的是:

I have a dataset of 4 rows and a few columns which are country, location, hits, lat, lon. Reproducible is:

structure(list(country = c("France", "France", "France", "France")
, location("Ile-de-France, Paris", "Ile-de-France, Villebon-sur-yvette", "Nord-Pas-de-Calais, Hérin", "Nord-Pas-de-Calais, Lille")
, Hits(1, 1, 3, 5)
, lat = c(46.227638, 46.227638, 46.227638, 46.227638)
, Ion = c(-2.213749, 2.213749, 2.213749, 2.213749)
)
, .Names = c("country", "location", "Hits", "lat", "Ion")
, class = "data.frame")

我想在弹出窗口中使用它，并将所有位置和命中显示为4条单独的行.

I want to use this in popup and show all the location and hits as 4 seperate lines.

我正在使用的当前代码是:

current code i am using is:

m <- leaflet() %>%
  addTiles() %>%  # Add default OpenStreetMap map tiles
  addCircles(lng=area$longitude, lat=area$latitude, popup=paste("Country:", area$Country, "<br>"
                                                            , "Location:", area$Location, "-", area$Hits, "<br>"))

如果您有任何疑问，请随时提问.

If u have questions feel free to ask.

推荐答案

您的示例中有一些错误. 试试这个

There were some mistakes in your example. Try this

library(leaflet)
area <- data.frame(country = c("France", "France", "France", "France")
           , location= c("Ile-de-France, Paris", "Ile-de-France, Villebon-sur-yvette", "Nord-Pas-de-Calais, Hérin", "Nord-Pas-de-Calais, Lille")
           , Hits= c(1, 1, 3, 5)
           , lat = c(46.234638, 46.456638, 46.288638, 46.900638)
           , lon = c(2.313749, 2.413749, 2.513749, 2.613749)
)


m <- leaflet() %>%
addTiles() %>%  # Add default OpenStreetMap map tiles
addCircles(lng=area$lon, lat=area$lat, 
popup=paste("Country:", area$country, "<br>", "Location:", area$location, "-", area$Hits, "<br>"))

您的示例的主要问题是在提供的坐标中.您为四个点分配了相同的坐标.这样只会显示最后一点.

The main issue with your example is in the provided coordinates. You assigned the same coordinates to the four points. This results in the display of the last point only.

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