For list input, each element of the list is written as a single JSON string.
For data.frame input, each row of the data.frame is written
as aJSON string.
write_ndjson_file(x, filename, opts = list(), ...)data.frame or list to be written as multiple JSON strings
JSON strings will be written to this file one-line-per-JSON string.
Named list of serialization options. Usually created by opts_write_json()
Other named options can be used to override any options in opts.
The valid named options are identical to arguments to opts_write_json()
None
Other JSON Serializer:
write_json_file(),
write_json_str(),
write_ndjson_str()
tmp <- tempfile()
write_ndjson_file(head(mtcars), tmp)
read_ndjson_file(tmp)
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> 1 21.0 6 160 110 3.90 2.620 16.46 0 1 4 4
#> 2 21.0 6 160 110 3.90 2.875 17.02 0 1 4 4
#> 3 22.8 4 108 93 3.85 2.320 18.61 1 1 4 1
#> 4 21.4 6 258 110 3.08 3.215 19.44 1 0 3 1
#> 5 18.7 8 360 175 3.15 3.440 17.02 0 0 3 2
#> 6 18.1 6 225 105 2.76 3.460 20.22 1 0 3 1