Created
September 11, 2023 18:42
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Bayes quartet
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| install.packages("bayesplay") | |
| install.packages("tidyverse") | |
| install.packages("patchwork") | |
| require(bayesplay) | |
| require(tidyverse) | |
| require(patchwork) | |
| # version 1 | |
| l <- bayesplay::likelihood("normal", 0, 1) | |
| p1 <- bayesplay::prior("normal", 10, 1) | |
| post <- bayesplay::extract_posterior(l * p1) | |
| v1 <- plot(post, add_prior = TRUE) + | |
| geom_function(fun = l[["likelihood_function"]]) + | |
| xlim(-5, 15) + | |
| theme(legend.position = "none") | |
| v1 | |
| # version 2 | |
| l <- bayesplay::likelihood("student_t", 0, 1, 2) | |
| p1 <- bayesplay::prior("student_t", 10, 1, 2) | |
| post <- bayesplay::extract_posterior(l * p1) | |
| v2 <- plot(post, add_prior = TRUE) + | |
| geom_function(fun = l[["likelihood_function"]]) + | |
| xlim(-5, 15) + | |
| theme(legend.position = "none") | |
| # version 3 | |
| l <- bayesplay::likelihood("normal", 0, 1) | |
| p1 <- bayesplay::prior("student_t", 10, 1, 2) | |
| post <- bayesplay::extract_posterior(l * p1) | |
| v3 <- plot(post, add_prior = TRUE) + | |
| geom_function(fun = l[["likelihood_function"]]) + | |
| xlim(-5, 15) + | |
| theme(legend.position = "none") | |
| # version 4 | |
| l <- bayesplay::likelihood("student_t", 0, 1, 2) | |
| p1 <- bayesplay::prior("normal", 10, 1) | |
| post <- bayesplay::extract_posterior(l * p1) | |
| v4 <- plot(post, add_prior = TRUE) + | |
| geom_function(fun = l[["likelihood_function"]]) + | |
| xlim(-5, 15) + | |
| theme(legend.position = "none") | |
| (v1 + v2) / (v3 + v4) |
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