R - Error in fromJSON(raw.data) : incomplete list

问题

I'm trying to read API data from the BLS into R. I am using the Version 1.0 that does not require registration and is open for public use.

Here is my code:

url <-"http://api.bls.gov/publicAPI/v1/timeseries/data/LAUCN040010000000005"
raw.data <- readLines(url, warn = F)

library(rjson)

rd <- fromJSON(raw.data)

And here is the error message I receive:

Error in fromJSON(raw.data) : incomplete list

If I just try to go to the url in my webrowser it seems to work (pull up a JSON webpage). Not really sure what is going on when I try to get this into R.

回答1:

When you've used readLines, the object returned is a vector of length 4:

length(raw.data)

You can look at the individual pieces via:

raw.data[1]

If you stick the pieces back together using paste

fromJSON(paste(raw.data, collapse = ""))

everything works. Alternatively,

jsonlite::fromJSON(url)

来源：https://stackoverflow.com/questions/36799124/r-error-in-fromjsonraw-data-incomplete-list