Created
June 20, 2019 20:13
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| # install.packages("mongolite") | |
| require("mongolite") | |
| require("tidyverse") | |
| require("lubridate") | |
| library(DT) | |
| connection <- mongo(collection = "tweets", db = "tweets", url = "mongodb://localhost") | |
| query <- '{ | |
| "$and": [ | |
| { "full_text": { "$not": { "$regex": "^RT ", "$options": "i" } } } | |
| ] | |
| }' | |
| tweets <- as_tibble(connection$find( | |
| query = query, | |
| fields = '{ | |
| "_id": false, | |
| "created_at": true, | |
| "full_text": true, | |
| "favorite_count": true, | |
| "retweet_count": true | |
| }' | |
| )) %>% | |
| filter(created_at >= as.Date('2010-01-01')) | |
| tweets$year <- format(tweets$created_at, "%Y") | |
| ui <- fluidPage( | |
| mainPanel( | |
| plotOutput("graph", | |
| height = 600, | |
| brush = brushOpts(id = "plot_brush") | |
| ), | |
| DT::dataTableOutput("table"), | |
| width = 12 | |
| ) | |
| ) | |
| server <- function(input, output) { | |
| output$table = DT::renderDataTable({ | |
| t <- brushedPoints(tweets, input$plot_brush) | |
| DT::datatable(t) | |
| }) | |
| output$graph <- renderPlot({ | |
| ggplot(tweets, aes(x = retweet_count, y = favorite_count, color = year)) + | |
| geom_jitter() + | |
| geom_count() + | |
| scale_x_log10() + | |
| scale_y_log10() + | |
| geom_abline(slope = 1) + | |
| facet_wrap( ~ year) | |
| }) | |
| } | |
| shinyApp(ui, server) |
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