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Making All Charts React to Inputs

Now let's make the whole dashboard respond to user inputs!

Diese Übung ist Teil des Kurses

Building Dashboards with flexdashboard

Kurs anzeigen

Anleitung zur Übung

  • Like you did with the map in the previous exercise, now make the other two charts (the valueBox() and the ggplot) react to user input.

Interaktive Übung

Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.

{"my_document.Rmd":"---\ntitle: \"Bike Shares Daily\"\noutput: \n  flexdashboard::flex_dashboard:\n    orientation: columns\n    vertical_layout: fill\nruntime: shiny\n---\n\n```{r global, include=FALSE}\nlibrary(flexdashboard)\nlibrary(readr)\nlibrary(leaflet)\nlibrary(DT)\nlibrary(tidyverse)\nlibrary(lubridate)\nlibrary(plotly)\n\ntrips_df <- read_csv('https://assets.datacamp.com/production/course_6961/datasets/sanfran_bikeshare_joined_oneday.csv') %>%\n  mutate(duration_min = duration_sec / 60,\n         start_hour = hour(start_date)) %>%\n  filter(duration_min <= 8 * 60) # remove trips longer than 8 hours as suspicious data quality\n\n```\n\n\n\nColumn {data-width=200 .sidebar}\n-----------------------------------------------------------------------\n\n```{r}\n\nsliderInput(\"start_slider\", \n            label = \"Select trip start times to display (hour of day):\",\n            min = 0, \n            max = 24, \n            value = c(7,10), \n            step = 1)\n\nshow_trips_df <- reactive({\n\n  trips_df %>%\n    filter(start_hour >= input$start_slider[1] &\n             start_hour <= input$start_slider[2])\n\n})\n\n```\n\nColumn {data-width=450}\n-----------------------------------------------------------------------\n### Origins\n\n```{r}\n\nrenderLeaflet({\n  \n  show_trips_df() %>%\n    rename(latitude = start_latitude,\n           longitude = start_longitude) %>%\n    group_by(start_station_id, latitude, longitude) %>%\n    count() %>%\n    leaflet() %>%\n    addTiles() %>%\n    addCircles(radius = ~n)\n  \n})\n\n\n```\n\nColumn {data-width=350}\n-----------------------------------------------------------------------\n\n### Total Trips\n\n```{r}\n\nvalueBox(prettyNum(trips_df %>%\n                     nrow(), big.mark = ','), \n         icon = 'fa-bicycle')\n\n\n```\n\n### Trips by Duration\n\n```{r}\n\ntrips_df %>%\n    ggplot(aes(x = duration_min)) +\n    theme_bw() +\n    xlab('Trip Duration (min) \\n') +\n    ylab('# trips') +\n    geom_histogram() \n\n```\n\n\n"}
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