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Making All Charts React to Inputs

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

Cet exercice fait partie du cours

Building Dashboards with flexdashboard

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Instructions

  • 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.

Exercice interactif pratique

Essayez cet exercice en complétant cet exemple de code.

{"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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