Questions tagged [parsnip]
6 questions
3
votes
1 answer
How to save parsnip/agua based H2O object and retrieve it again
I have the following script using tidymodels' agua package:
library(tidymodels)
library(agua)
library(ggplot2)
theme_set(theme_bw())
h2o_start()
data(concrete)
set.seed(4595)
concrete_split <- initial_split(concrete, strata =…
littleworth
- 4,781
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1
vote
1 answer
Regression trees with tidymodels
When attempting to use Regression Trees, how do you determine if/ when to use tune_grid() versus fit_resamples()?
I tried these two things:
1.
using tune_grid
tune_spec<- decision_tree(min_n= tune(), tree_depth= tune(), cost_complexity=tune()) %>%…
Lillian Welsh
- 21
- 3
1
vote
1 answer
Update parsnip model parameters dynamically
Let's say I have a tibble like so:
> mod_tbl
# A tibble: 46 × 3
.parsnip_engine .parsnip_mode .parsnip_fns
1 lm regression linear_reg
2 brulee regression linear_reg
…
MCP_infiltrator
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1
vote
2 answers
How to extract predictors from parsnip fit object
I have the following prediction model:
library(tidymodels)
data(ames)
set.seed(4595)
data_split <- initial_split(ames, strata = "Sale_Price", prop = 0.75)
ames_train <- training(data_split)
ames_test <- testing(data_split)
rec <-…
littleworth
- 4,781
- 6
- 42
- 76
0
votes
1 answer
Challenges using `tidymodels`, `parsnip`, and `workflows` for events/trials outcome
tidymodelRs out there!
The Goal: reuse a recipe object for multiple modeling types (logistic, RF, etc).
The Data: survey data that I have condensed to outcome_yes (numeric count of when something happened), outcome_no (numeric count of when that…
kyle-G
- 51
- 5
0
votes
1 answer
Using parsnip to call multinomial_naive_bayes
I want to use tidymodels to build a workflow for an NLP problem. I have a basic flow built in the traditional way using the naivebayes package, which basically feeds a document-term matrix (counts of terms occurring in each document) to the…
Tom Wagstaff
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