将嵌套的 json 文件读入 R 并写入 csv

Question

How can I read in this json file from the COVID Act Now API, convert to data frame, and write to CSV?

It seems to be in some special nested json format and I am getting this error in R

AL <- as.data.frame(fromJSON(file = "https://data.covidactnow.org/latest/us/states/AL.OBSERVED_INTERVENTION.timeseries.json"))

Error in fromJSON(file = "https://data.covidactnow.org/latest/us/states/AL.OBSERVED_INTERVENTION.timeseries.json"): argument "txt" is missing, with no default

Answer 1

Try this:

library(jsonlite)

AL <- as.data.frame(fromJSON(txt = "https://data.covidactnow.org/latest/us/states/AL.OBSERVED_INTERVENTION.timeseries.json"))

Notice the name of the argument: txt , not file .