Created
November 18, 2022 15:55
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# benchmarking the new parsnip release | |
library(tidymodels) | |
# with v1.0.2 ------------------------------------------------------------ | |
pak::pkg_install("tidymodels/parsnip@v1.0.2") | |
num_samples <- 10^(3:7) | |
num_resamples <- c(5, 10, 20) | |
nrow <- length(num_samples) * length(num_resamples) | |
res_v102 <- | |
tibble( | |
version = character(nrow), | |
num_samples = numeric(nrow), | |
num_resamples = numeric(nrow), | |
time_to_fit = numeric(nrow) | |
) | |
set.seed(1) | |
for (i in seq_along(num_samples)) { | |
dat <- tibble(x = rnorm(num_samples[i]), y = x + rnorm(num_samples[i], sd = .2)) | |
for (j in seq_along(num_resamples)) { | |
folds <- vfold_cv(dat, v = num_resamples[j]) | |
timing <- | |
system.time({ | |
fit_resamples(linear_reg(), y ~ x, folds) | |
}) | |
idx <- (length(num_samples) * (j - 1)) + i | |
res_v102[idx,] <- list("v1.0.2", num_samples[i], num_resamples[j], timing[["elapsed"]]) | |
} | |
} | |
# with v1.0.3 ------------------------------------------------------------ | |
pak::pkg_install("tidymodels/parsnip@v1.0.3") | |
res_v103 <- | |
tibble( | |
version = character(nrow), | |
num_samples = numeric(nrow), | |
num_resamples = numeric(nrow), | |
time_to_fit = numeric(nrow) | |
) | |
set.seed(1) | |
for (i in seq_along(num_samples)) { | |
dat <- tibble(x = rnorm(num_samples[i]), y = x + rnorm(num_samples[i], sd = .2)) | |
for (j in seq_along(num_resamples)) { | |
folds <- vfold_cv(dat, v = num_resamples[j]) | |
timing <- | |
system.time({ | |
fit_resamples(linear_reg(), y ~ x, folds) | |
}) | |
idx <- (length(num_samples) * (j - 1)) + i | |
res_v103[idx,] <- list("v1.0.3", num_samples[i], num_resamples[j], timing[["elapsed"]]) | |
} | |
} | |
# plotting --------------------------------------------------------------- | |
res <- bind_rows(res_v102, res_v103) | |
res_plot <- | |
res %>% | |
pivot_wider( | |
id_cols = c(num_samples, num_resamples), | |
names_from = version, | |
values_from = time_to_fit | |
) %>% | |
mutate(speedup = `v1.0.2` / `v1.0.3`) %>% | |
select(-starts_with("v")) %>% | |
mutate(num_resamples = factor(num_resamples, levels = c("20", "10", "5"), ordered = TRUE)) %>% | |
ggplot() + | |
aes(x = num_samples, y = speedup, col = num_resamples) + | |
geom_line() + | |
scale_x_log10() + | |
labs( | |
x = "Number of Rows in Training Data", | |
y = "Speedup (v1.0.2 / v1.0.3)", | |
col = "Number \nof Folds", | |
title = "tidymodels got a lot faster!", | |
subtitle = "The new release of parsnip contributed a significant speedup for model fitting." | |
) + | |
scale_color_viridis_d(end = .8) + | |
theme(plot.subtitle = element_text(face = "italic")) | |
ggsave("speedup.png", res_plot, width = 6, height = 4, dpi = 400) |
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