Saving an orbital object to disk in a human and machine readable way.
Arguments
- x
An orbital object.
- path
file on disk.
Details
The structure of the resulting JSON file allows for easy reading, both by
orbital itself with orbital_json_read(), but potentially by other packages
and langauges. The file is versioned by the version field to allow for
changes why being backwards combatible with older file versions.
Examples
library(workflows)
library(recipes)
library(parsnip)
rec_spec <- recipe(mpg ~ ., data = mtcars) |>
step_normalize(all_numeric_predictors())
lm_spec <- linear_reg()
wf_spec <- workflow(rec_spec, lm_spec)
wf_fit <- fit(wf_spec, mtcars)
orbital_obj <- orbital(wf_fit)
tmp_file <- tempfile()
orbital_json_write(orbital_obj, tmp_file)
readLines(tmp_file)
#> [1] "{"
#> [2] " \"actions\": {"
#> [3] " \"cyl\": \"(cyl - 6.1875) / 1.7859216469465444\","
#> [4] " \"disp\": \"(disp - 230.72187500000001) / 123.93869383138194\","
#> [5] " \"hp\": \"(hp - 146.6875) / 68.562868489320593\","
#> [6] " \"drat\": \"(drat - 3.5965625000000001) / 0.53467873607097149\","
#> [7] " \"wt\": \"(wt - 3.2172499999999999) / 0.97845744298969672\","
#> [8] " \"qsec\": \"(qsec - 17.848749999999999) / 1.7869432360968429\","
#> [9] " \"vs\": \"(vs - 0.4375) / 0.50401612877418533\","
#> [10] " \"am\": \"(am - 0.40625) / 0.49899091723584604\","
#> [11] " \"gear\": \"(gear - 3.6875) / 0.73780406525694708\","
#> [12] " \"carb\": \"(carb - 2.8125) / 1.6151999776318522\","
#> [13] " \".pred\": \"20.090624999999996 + (cyl * -0.1990239618042213) + (disp * 1.6527522167876059) + (hp * -1.4728756991240948) + (drat * 0.42085149978279884) + (wt * -3.6352667816408784) + (qsec * 1.4671532141909569) + (vs * 0.16015758347412398) + (am * 1.2575703260905717) + (gear * 0.48356638842526595) + (carb * -0.32210197598320101)\""
#> [14] " },"
#> [15] " \"pred_names\": \".pred\","
#> [16] " \"version\": 2"
#> [17] "}"