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我有一个JSON输入,我从服务器获取,我想将其解析为数据框对象。在R中解析多行JSON
结构:
体积紧凑
'{"total_rows":2,"offset":0,"rows":[{"id":"1","key":["1001"],"value":{"context":"1001","application_id":"1","cust_assets_total":1550000}},{"id":"2","key":["1001"],"value":{"context":"1001","application_id":"2","cust_assets_total":1550000}}]}'
漂亮的表格
{
"total_rows": 2,
"offset": 0,
"rows": [
{
"id": "1",
"key": [
"1001"
],
"value": {
"context": "1001",
"application_id": "1",
"cust_assets_total": 1550000
}
},
{
"id": "2",
"key": [
"1001"
],
"value": {
"context": "1001",
"application_id": "2",
"cust_assets_total": 1550000
}
}
]
}
预期输出:
context application_id cust_assets_total
1001 1 1550000
1001 2 1550000
代码中使用:
library(jsonlite)
raw_data <- '{"total_rows":2,"offset":0,"rows":[{"id":"1","key":["1001"],"value":{"context":"1001","application_id":"1","cust_assets_total":1550000}},{"id":"2","key":["1001"],"value":{"context":"1001","application_id":"2","cust_assets_total":1550000}}]}'
temp <-fromJSON(paste(readLines(raw_data),collapse=""))
,但是这导致错误:
Error in file(con, "r") : cannot open the connection
In addition: Warning message:
In file(con, "r") :
cannot open file '{"total_rows":2,"offset":0,"rows":[{"id":"1","key":["1001"],"value":{"context":"1001","application_id":"1","cust_assets_total":1550000}},{"id":"2","key":["1001"],"value":{"context":"1001","application_id":"2","cust_assets_total":1550000}}]}': No such file or directory
如果'raw_data'已经在R中,为什么不只是'fromJSON(raw_data)'?至于错误,我相信你可能会丢失'textConnection',如'readLines(textConnection(raw_data))' – Jota
raw_data将是使用Rcurl下载的,即raw_data < - getURL(url),将检查你的建议 –