topepo

library(tidymodels)
library(plsmod)
library(DALEX)

theme_set(theme_bw())

## ── Attaching packages ───────────────────────────────── tidymodels 0.1.1 ──
## ✓ broom     0.7.0      ✓ recipes   0.1.13
## ✓ dials     0.0.8      ✓ rsample   0.0.7 
## ✓ dplyr     1.0.0      ✓ tibble    3.0.3 

topepo

#' @param x A prepped recipe or fitted workflow that uses a recipe. The recipe
#'  must have used at least one `step_pca()`. 
#' @param id A single numeric or character value that is used to pick the step
#'  with the PCA results. If a single `step_pca()` was used, this argument is
#'  ignored. *Note*: if used, `id` must be named. 
#' @param ... An optional series of conditional statements used to filter the 
#'  PCA data before plotting. See Details below. 
#' @examples 
#' library(recipes)
#' library(parsnip)

topepo

## -----------------------------------------------------------------------------
# Simple demonstration of stacking using three models with the Ames housing data

## -----------------------------------------------------------------------------

library(tidymodels)
library(rules)
library(doMC)
library(AmesHousing)
library(ggforce)

topepo

library(tidymodels)
library(Matrix)
library(lobstr)


# ------------------------------------------------------------------------------

rand_values <- function (prefix = "step", len = 3, num_vals = Inf) {
  candidates <- c(letters, LETTERS, paste(0:9))
  candidates <- candidates[1:min(length(candidates), num_vals)]

topepo

library(tidyverse)
library(janitor)
library(tidymodels)
library(plotly)

theme_set(theme_bw())

body <- 
  read_csv("http://staff.pubhealth.ku.dk/~tag/Teaching/share/data/Bodyfat.csv") %>% 
  janitor::clean_names() %>% 

topepo

library(tidyverse)
library(lubridate)

# ------------------------------------------------------------------------------

set.seed(2427)
hotels <- 
  readr::read_csv('https://raw.githubusercontent.com/rfordatascience/tidytuesday/master/data/2020/2020-02-11/hotels.csv') %>%
  filter(is_canceled == 0) %>%
  mutate(

topepo

# devtools::install_dev("rsample")
library(tidymodels)

set.seed(252)
first_split <- initial_split(iris, p = 8/10)
test <- testing(first_split)
nrow(test)

others <- training(first_split)

topepo

library(tidyverse)
library(lubridate)

theme_set(theme_bw())

dat <-
  read_csv("https://raw.githubusercontent.com/nytimes/covid-19-data/master/us-counties.csv")

dat %>%
  group_by(state) %>%

topepo

library(tidymodels)
library(modeldata)

data(attrition)

ord_rec <- 
  recipe(Attrition ~ JobInvolvement + JobSatisfaction, data = attrition) %>% 
  step_dummy(all_nominal()) %>% 
  prep() %>% 
  juice() %>% 

topepo

library(tidymodels)
library(rlang)


get_arg <- function(ns, f, arg) {
  args <- formals(getFromNamespace(f, ns))
  args <- args %>% as.list() 
  as.character(args[[arg]])
}