使用 R Studio 的悬停散点图

Question

我有一个 R 程序，想要一种将鼠标悬停在数据点上并显示信息的方法。我一直在尝试使用传单，但它太复杂了。 No matter what I try, OpenStreetMap doesn't load in R Studio.

我只是在寻找允许人们将鼠标悬停在数据点上以查看信息的简单方法。此代码显示下图：

library(ggmap)
library(ggplot2)

...


# create a new grouping variable

sep$Percent_SEP12_Assets <- ifelse(sep[,8] <= 33, "Less than 33%", ifelse(sep[,8] >= 66, "More than 66%", "Between 33% and 66%"))
sep$Percent_SEP12_Assets <- factor(sep$Percent_SEP12_Assets,
                               levels = c("More than 66%", "Between 33% and 66%", "Less than 33%"))


# get the map
bbox <- make_bbox(sep$Longitude, sep$Latitude, f = 1)
map <- get_map(bbox)


# plot the map and use the grouping variable for the fill inside the aes
ggmap(map) +
  geom_point(data=sep, aes(x = Longitude, y = Latitude, color=sep$Percent_SEP12_Assets ), size=9, alpha=0.6) +
  scale_color_manual(values=c("green","orange","red"), drop = FALSE)

Answer 1

R 有一个新的 leaflet package that is totally easy to use and should get you what you need. See my rPubs post where I walk through the steps here 并包含一个演示地图。

使用 R Studio 的悬停散点图

Hover-over scatterplot using R Studio

google-maps

r

rstudio

ggmap