This document shows an example of making a web presentation with graphics, using R Markdown (http://rmarkdown.rstudio.com), Slidy and Plotly (https://plot.ly/) together, corresponding to the assignment of Week 3 of the Developing Data Products course from Coursera (https://www.coursera.org/learn/data-products).

Data used by the example is the Iris Data Set. This dataset contains 3 classes of 50 instances each, where each class refers to a type of iris plant.

This presentation will show a scatter plot where the X-Axis is the column Sepal.Length, the Y-Axis is the column Sepal.Width, and the dots’ colors are based on the column Petal.Length.

Loading Dataset

data("iris")
head(iris)
##   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 1          5.1         3.5          1.4         0.2  setosa
## 2          4.9         3.0          1.4         0.2  setosa
## 3          4.7         3.2          1.3         0.2  setosa
## 4          4.6         3.1          1.5         0.2  setosa
## 5          5.0         3.6          1.4         0.2  setosa
## 6          5.4         3.9          1.7         0.4  setosa

Plot

library(plotly)
## Warning: package 'plotly' was built under R version 4.4.3
## Loading required package: ggplot2
## Warning: package 'ggplot2' was built under R version 4.4.3
## 
## Attaching package: 'plotly'
## The following object is masked from 'package:ggplot2':
## 
##     last_plot
## The following object is masked from 'package:stats':
## 
##     filter
## The following object is masked from 'package:graphics':
## 
##     layout
plot_ly(
data = iris,
x = ~Sepal.Length,
y = ~Sepal.Width,
type = "scatter",
mode = "markers",
color = ~Petal.Length
)