Steve Dubois
December 12, 2017
The Shiny Galton Predictor is a Shiny Web Application (app) that allows the user to predict an adult child's height based on the height of the child's parents.
The app takes from the user inputs of the heights of both parents. And, by way of linear regression, the app will predict the height of the children.
The application can be accessed at: https://myfapp.shinyapps.io/galton/. The ui.R (user interface) and the server.R files can be found at: https://github.com/steveduboi/steveduboi3.github.io.
library(UsingR)
data(galton)
summary(galton)
child parent
Min. :61.70 Min. :64.00
1st Qu.:66.20 1st Qu.:67.50
Median :68.20 Median :68.50
Mean :68.09 Mean :68.31
3rd Qu.:70.20 3rd Qu.:69.50
Max. :73.70 Max. :73.00
library(ggplot2)
ggplot(galton ,aes(parent,child))+geom_point()+geom_smooth(method = "lm")
We can see from both the plot summary table that there is a positive correlation between child heights and the parent heights.
THANK YOU.