如何从 dataframe (R) 中的 json 列获取特定数据？

Question

我正在处理一个包含这种列的数据集，它看起来像一个 json 结构

在此处输入图像描述

我只想获得职业，我该如何访问它？

我试图替换一些符号以转换为 chr 向量

数据$speakers <- str_replace(data$speakers, "[{", "(")

---

数据：

    structure(list(X_id = c(21L, 1L, 7L, 47L, 55L), duration = c(992L, 
957L, 1266L, 1126L, 1524L), event = c("TED2006", "TED2006", "TED2006", 
"TEDGlobal 2005", "TED2006"), likes = c("17000", "110000", "60000", 
"80000", "14000"), published_date = structure(c(1156464660, 1151367060, 
1151367060, 1158019860, 1153786260), class = c("POSIXct", "POSIXt"
), tzone = "UTC"), related_videos = c("[\"144\",\"1282\",\"1379\",\"87\",\"2302\",\"2638\"]", 
"[\"243\",\"547\",\"2093\",\"74405\",\"64693\",\"83767\"]", "[\"1725\",\"2274\",\"172\",\"2664\",\"2464\",\"1268\"]", 
"[\"2237\",\"701\",\"1095\",\"1386\",\"76211\",\"242\"]", "[\"2228\",\"1476\",\"800\",\"2890\",\"45233\",\"2694\"]"
), speakers = c("[{\"name\":\"Mena Trott\",\"occupation\":\"Blogger; cofounder, Six Apart\"}]", 
"[{\"name\":\"Al Gore\",\"occupation\":\"Climate advocate\"}]", 
"[{\"name\":\"David Pogue\",\"occupation\":\"Technology columnist\"}]", 
"[{\"name\":\"David Deutsch\",\"occupation\":\"Physicist, author\"}]", 
"[{\"name\":\"Jehane Noujaim\",\"occupation\":\"Filmmaker\"}]"
)), row.names = c(NA, 5L), class = "data.frame")

Answer 1

我得到了一些帮助，它奏效了！

"[{"name":"Mena Trott","occupation":"Blogger; 联合创始人，六人组"}]" |> jsonlite::fromJSON() |> as_tibble() |> select(occupation) |> as.vector()