Fler indatatyper

Fallstudier: Bygg webbapplikationer med Shiny i R

Dean Attali

Shiny Consultant

Gapminder plot app

Gapminder-plotapp

Sliderindata

sliderInput("slider", "Choose a number",
            value = 15, min = 5, max = 20)

chapter2_3_more_input_types.004.png

sliderInput("slider2", "Choose a number",
            value = c(10, 15), min = 5, max = 20)

chapter2_3_more_input_types.006_b.png

str(input$slider2)

num [1:2] 10 15

Radioknappar

radioButtons("radio", "Choose your favorite time of day",
             choices = c("Morning", "Afternoon", "Evening"),
             selected = "Afternoon")

chapter2_3_more_input_types.009.png

Urvalsindata (rullgardinsmenyer)

selectInput("select", "Choose your favorite time of day",
            choices = c("Morning", "Afternoon", "Evening"),
            selected = "Afternoon")

chapter2_3_more_input_types.013.png

Urvalsindata (rullgardinsmenyer)

selectInput("select", "Choose your favorite time of day",
            choices = c("Morning", "Afternoon", "Evening"),
            selected = "Afternoon")

chapter2_3_more_input_types.014.png

Urvalsindata (rullgardinsmenyer)

selectInput("select", "Choose your favorite time of day",
            choices = c("Morning", "Afternoon", "Evening"),
            selected = "Afternoon")

chapter2_3_more_input_types.015.png

Urvalsindata (rullgardinsmenyer)

Tillåt flera val

selectInput("select", "Choose your favorite time of day",
            choices = c("Morning", "Afternoon", "Evening"),
            selected = c("Afternoon", "Evening"),
            multiple = TRUE)

chapter2_3_more_input_types.016.png

Radioknappar vs. urvalsindata

Radioknappar
- Få alternativ
- Alla alternativ är synliga
- Exakt ett alternativ väljs
Urvalsindata
- Få eller många alternativ
- Svårare att se alla alternativ
- Flera alternativ kan väljas

chapter2_3_more_input_types.018.png

Nu kör vi en övning!

Fallstudier: Bygg webbapplikationer med Shiny i R