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library(rvest) |
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library(tidyverse) |
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library(furrr) |
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#--------functions-------- |
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get_mep_overview <- function(x){ |
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data_frame( |
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mep_name = x %>% html_nodes(".member-name") %>% html_text(), |
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mep_link = x %>% html_nodes(".single-member-container a") %>% |
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html_attr("href") %>% |
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paste0("http://www.europarl.europa.eu",.), |
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mep_group = x %>% html_nodes(".ep-layout_group .ep_name") %>% html_text(), |
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mep_party = x %>% html_nodes(".ep-layout_party .ep_name") %>% html_text(), |
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mep_country = x %>% html_nodes(".ep-layout_country .ep_name") %>% html_text(), |
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mep_id = mep_link %>% str_extract("\\d+$") |
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) |
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} |
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get_mep_data <- function(x){ |
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page <- read_html(x) |
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data_frame( |
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mep_id = x %>% str_extract("\\d+$"), |
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website = page %>% html_nodes(".link_website") %>% html_attr("href") %>% list(), |
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email = page %>% html_nodes(".link_email a") %>% html_attr("href") %>% list(), |
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twitter = page %>% html_nodes(".link_twitt a") %>% html_attr("href") %>% list(), |
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facebook = page %>% html_nodes(".link_fb a") %>% html_attr("href") %>% list(), |
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youtube = page %>% html_nodes(".link_youtube a") %>% html_attr("href") %>% list(), |
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linkedin = page %>% html_nodes(".link_linkedin a") %>% html_attr("href") %>% list(), |
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instagram = page %>% html_nodes(".link_instagram a") %>% html_attr("href") %>% list(), |
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mep_birthday = page %>% html_nodes("#birthDate") %>% html_text() %>% list() |
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) |
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} |
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#--------data-------- |
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mep_page <- read_html("http://www.europarl.europa.eu/meps/en/full-list/all") |
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mep_df <- get_mep_overview(mep_page) |
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plan(multiprocess) |
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mep_social_media <- future_map_dfr(mep_df$mep_link, get_mep_data, .progress = TRUE) |
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#--------plot-------- |
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library(emojifont) |
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library(ggalt) |
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load.fontawesome() |
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social_media_icons <- tibble::tribble( |
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~icon, ~social_media, ~sm_color, |
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"facebook", "facebook", "#3b5999", |
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"fa-twitter", "twitter", "#55acee", |
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"fa-instagram", "instagram", "#e4405f", |
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"fa-linkedin", "linkedin", "#0077B5", |
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"fa-youtube", "youtube", "#cd201f" |
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) %>% |
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mutate(icon = fontawesome(icon)) |
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sm_plot_data <- mep_social_media %>% |
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mutate_if(is.list, ~map(., ~length(.)) %>% unlist()) %>% |
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mutate_if(is.integer, ~na_if(., 0)) %>% |
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gather(twitter, facebook, youtube, linkedin, instagram, key = social_media, value = account, na.rm = TRUE) %>% |
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count(social_media, sort = TRUE) %>% |
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left_join(social_media_icons, by = "social_media") |
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social_media_colors <- sm_plot_data$sm_color[order(sm_plot_data$n)] |
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sm_plot_data %>% |
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ggplot(aes(x = reorder(icon, n), y = n, color = sm_color)) + |
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geom_lollipop() + |
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scale_color_identity() + |
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theme_void() + |
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theme(axis.text.y = element_text(family='fontawesome-webfont', |
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size = 25, |
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color = social_media_colors, |
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margin=margin(0,-15,0,0))) + |
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guides(color = FALSE) + |
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coord_flip() + |
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labs(title = "Social Media Auftritte der Mitglieder des Europaparlaments", |
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subtitle = "Angaben der 751 Abgeordneten auf der Webseite des Europaparlaments", |
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caption = "holnburger.com", |
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x = NULL, |
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y = NULL) + |
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scale_y_continuous(limits = c(0, 600)) + |
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geom_text(aes(label = n), hjust = -0.5, size = 5) |
