R，传单包，将HTML标签的字符向量传递给弹出窗口? [英] R, leaflet package, Passing a character vector of HTML tags to popups?

问题描述

我正在尝试在 https://rstudio.github.io/上模拟第一个示例leaflet/popups.html ，但带有html标签而不是一个.

I'm trying to emulate the first example on https://rstudio.github.io/leaflet/popups.html but with a vector of html tags rather than one.

https://rstudio.github.io/leaflet/popups.html:

内容

[1] "<b><a href='http://www.samurainoodle.com'>Samurai Noodle</a></b><br/>606 5th Ave. S<br/>Seattle, WA 98138"

我的:

bird $ html [1]

bird$html[1]

[1] "<a href=‘https://www.allaboutbirds.org/guide/Gadwall/id’>more info</a>"

但是，当我将代码传递给传单弹出窗口时，将显示更多信息超链接，并链接到未找到的页面而不是URL.我是否必须在HTML标签中添加任何特殊字符(例如，斜杠或引号)?有什么想法吗?

However, when I pass the code to leaflet popup, the more info hyperlink displays and links to a not found page rather than the url. Do i have to add any special characters to the HTML tag (e.g. slashes or quotations)? Any thoughts?

leaflet () %>%
      addTiles(urlTemplate = base_map, attribution = mb_attribution)%>%
      addMarkers(bird$lon, bird$lat, 
                 popup=paste(sep="","<b>", bird$Common.Name,"</b>",
                             "<br/>","<font size=2 color=#045FB4>","Scientific Name: ","</font>" ,bird$Scientific.Name,
                             "<br/>","<font size=2 color=#045FB4>","Number Observed: ","</font>", bird$Count,
                             "<br/>","<font size=2 color=#045FB4>","Location: ","</font>", bird$Location,
                             "<br/>","<font size=2 color=#045FB4>","Region: ","</font>", bird$Area,
                             "<br/>","<font size=2 color=#045FB4>", "Date: ", "</font>", bird$Date,
                             "<br/>", bird$html),
                 clusterOptions = markerClusterOptions()) %>%
      addPopups(bird$lon, bird$lat, bird$html, options = popupOptions(closeButton = FALSE)
      )

推荐答案

我认为您使用了错误的引号字符串. ’代替'.如果我这样反引号，它对我有用:

I think you're using a wrong quotation string. ’ instead of '. It works for me if I reverse the quote string as so:

'<a href="https://www.allaboutbirds.org/guide/Gadwall/id">more info</a>'

用双引号引起来的URL.

Double quotes to escape the URL.

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