Data

# A tibble: 6 x 7
  species island    culmen_length culmen_depth flipper_length body_mass sex   
  <fct>   <fct>             <dbl>        <dbl>          <int>     <int> <fct> 
1 Adelie  Torgersen          39.1         18.7            181      3750 male  
2 Adelie  Torgersen          39.5         17.4            186      3800 female
3 Adelie  Torgersen          40.3         18              195      3250 female
4 Adelie  Torgersen          36.7         19.3            193      3450 female
5 Adelie  Torgersen          39.3         20.6            190      3650 male  
6 Adelie  Torgersen          38.9         17.8            181      3625 female

      species          island    culmen_length    culmen_depth   flipper_length
 Adelie   :146   Biscoe   :163   Min.   :32.10   Min.   :13.10   Min.   :172   
 Chinstrap: 68   Dream    :123   1st Qu.:39.50   1st Qu.:15.60   1st Qu.:190   
 Gentoo   :119   Torgersen: 47   Median :44.50   Median :17.30   Median :197   
                                 Mean   :43.99   Mean   :17.16   Mean   :201   
                                 3rd Qu.:48.60   3rd Qu.:18.70   3rd Qu.:213   
                                 Max.   :59.60   Max.   :21.50   Max.   :231   
   body_mass        sex     
 Min.   :2700   female:165  
 1st Qu.:3550   male  :168  
 Median :4050               
 Mean   :4207               
 3rd Qu.:4775               
 Max.   :6300

Static graphic

Interactive graphics

• allows the use to interact with the graphical information presented on the display.

• Cross filtering

  • Zoom by selecting an area of interest

  • Hover the line to get exact information.

Interactive plot

Interactive plot (cont.)

Introduction to plot_ly():

• Mapping variables: Instead of aes use ~

Introduction to plot_ly()

Introduction to plot_ly()

Introduction to plot_ly()

• plotly finds a suitable geometric representation for us.

• Users can also define geometries.

• Functions to encode data

  • color: map each level to a different colour
  • colors: specify a range of colours
  • stroke
  • span
  • symbol
  • linetype

color argument

colors argument

Define a colour: I()

layout()

functional approach to a layered grammar of graphics

input: plotly object

Works with %>% operator

penguins %>% plot_ly(x = ~species) %>%
layout(title="Composition of species")

Modify graphs: add_*

add_histogram

Modify graphs

add_bars (requires pre calculated counts)

Modify graphs (cont.)

Line graphs

Boxplots

Boxplot

Combining multiple views

• Static or dynamic

• Scatterplot matrices

• Higer dimensional displayes

• Arrange multiple plots in a single plane

Combining multiple views

subplot: merge multiple plotly objects.

Combining multiple views (cont.)

• splom

Flexdashboard

Click here

Clickhere