Vetiver, the oil of tranquility, is used as a stabilizing ingredient in perfumery to preserve more volatile fragrances.
The goal of vetiver is to provide fluent tooling to version, share, deploy, and monitor a trained model. Functions handle both recording and checking the model’s input data prototype, and predicting from a remote API endpoint. The vetiver package is extensible, with generics that can support many kinds of models, and available for both R and Python. To learn more about vetiver, see:
- the documentation at https://vetiver.rstudio.com/
- the Python package at https://rstudio.github.io/vetiver-python/
You can use vetiver with:
You can install the released version of vetiver from CRAN with:
And the development version from GitHub with:
# install.packages("devtools") devtools::install_github("rstudio/vetiver-r")
vetiver_model() object collects the information needed to store, version, and deploy a trained model.
library(parsnip) library(workflows) data(Sacramento, package = "modeldata") rf_spec <- rand_forest(mode = "regression") rf_form <- price ~ type + sqft + beds + baths rf_fit <- workflow(rf_form, rf_spec) %>% fit(Sacramento) library(vetiver) v <- vetiver_model(rf_fit, "sacramento_rf") v #> #> ── sacramento_rf ─ <butchered_workflow> model for deployment #> A ranger regression modeling workflow using 4 features
If the deployed model endpoint is running via one R process (either remotely on a server or locally, perhaps via a background job in the RStudio IDE), you can make predictions with that deployed model and new data in another, separate R process. First, create a model endpoint:
library(vetiver) endpoint <- vetiver_endpoint("http://127.0.0.1:8088/predict") endpoint #> #> ── A model API endpoint for prediction: #> http://127.0.0.1:8088/predict
Such a model API endpoint deployed with vetiver will return predictions for appropriate new data.
library(tidyverse) new_sac <- Sacramento %>% slice_sample(n = 20) %>% select(type, sqft, beds, baths) predict(endpoint, new_sac) #> # A tibble: 20 x 1 #> .pred #> <dbl> #> 1 165042. #> 2 212461. #> 3 119008. #> 4 201752. #> 5 223096. #> 6 115696. #> 7 191262. #> 8 211706. #> 9 259336. #> 10 206826. #> 11 234952. #> 12 221993. #> 13 204983. #> 14 548052. #> 15 151186. #> 16 299365. #> 17 213439. #> 18 287993. #> 19 272017. #> 20 226629.
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