visNetwork没有显示图例?

问题描述

我正试图为我的visNetwork图获得一个图例,但没有显示它。

visNetwork(inet_node,inet_edge,width = "100%",height = "400px",main = "Teacher - Contact Network") %>%
  visNodes(size = 40) %>%
  visLegend(enabled = T)
  visIgraphLayout(layout = "layout_with_fr") %>%
  visOptions(highlightNearest = list(enabled = T,hover = T),nodesIdSelection = list(enabled = TRUE,main = "Select by Name",style = 'width: 200px; 
                      height: 26px;
                  background:#f8f8f8;
                      color:darkblue;
                      border:none;
                      outline:none;'),collapse = list(enabled = T,clusterOptions = list(shape = "square")))

解决方法

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