Tree Volume Estimator Pitch

Kenzie Fuquay

Slide 1: Introduction

This Shiny app estimates the volume of a tree from its girth using a simple linear regression model.It uses the built-in trees dataset and is deployed via shinyapps.io.

Slide 2: What the App Does

User inputs tree girth

The app:

Predicts the volume

Shows a scatterplot of tree measurements

Optionally includes a regression line

Highlights the predicted value

Slide 3: The Dataset

Using the built-in trees dataset:

     Girth           Height       Volume     
 Min.   : 8.30   Min.   :63   Min.   :10.20  
 1st Qu.:11.05   1st Qu.:72   1st Qu.:19.40  
 Median :12.90   Median :76   Median :24.20  
 Mean   :13.25   Mean   :76   Mean   :30.17  
 3rd Qu.:15.25   3rd Qu.:80   3rd Qu.:37.30  
 Max.   :20.60   Max.   :87   Max.   :77.00

Slide 4: The Model

Linear regression to predict Volume from Girth:

(Intercept)       Girth 
 -36.943459    5.065856

Slide 5: Try the App!