DiamondSlides.Rmd

---
title: "Shiny App and Reproducible Pitch"
author: "Vadim Katsemba"
date: "November 14, 2016"
output: ioslides_presentation
---

##Overview
The application was designed as part of the final
project for the Developing Data Products class as part
of Coursera's Data Science Specialization.

The link to the application itself is at:
https://vkat722.shinyapps.io/Diamonds/

The source code for the ui.r and server.r files can be
found at the GitHub repository: https://github.com/vkatsemba/DevelopingDataProducts

##Functionality
The application is used to predict the price of a diamond
based on its weight.

The slider allows you to select the diamond's weight and an
interactive plot displays two lines indicating the price
using two different linear models.

It's up to you to decide what price you think is more accurate
for a particular diamond.

##Dataset
Here's the summary of the diamonds dataset.
```{r, echo=FALSE}
library(ggplot2)
data("diamonds")
summary(diamonds)
```

```
  carat               cut        color        clarity     
 Min.   :0.2000   Fair     : 1610   D: 6775   SI1    :13065  
 1st Qu.:0.4000   Good     : 4906   E: 9797   VS2    :12258  
 Median :0.7000   Very Good:12082   F: 9542   SI2    : 9194  
 Mean   :0.7979   Premium  :13791   G:11292   VS1    : 8171  
 3rd Qu.:1.0400   Ideal    :21551   H: 8304   VVS2   : 5066  
 Max.   :5.0100                     I: 5422   VVS1   : 3655  
                                    J: 2808   (Other): 2531  
     depth           table           price      
 Min.   :43.00   Min.   :43.00   Min.   :  326  
 1st Qu.:61.00   1st Qu.:56.00   1st Qu.:  950  
 Median :61.80   Median :57.00   Median : 2401  
 Mean   :61.75   Mean   :57.46   Mean   : 3933  
 3rd Qu.:62.50   3rd Qu.:59.00   3rd Qu.: 5324  
 Max.   :79.00   Max.   :95.00   Max.   :18823  
                                                
       x                y                z         
 Min.   : 0.000   Min.   : 0.000   Min.   : 0.000  
 1st Qu.: 4.710   1st Qu.: 4.720   1st Qu.: 2.910  
 Median : 5.700   Median : 5.710   Median : 3.530  
 Mean   : 5.731   Mean   : 5.735   Mean   : 3.539  
 3rd Qu.: 6.540   3rd Qu.: 6.540   3rd Qu.: 4.040  
 Max.   :10.740   Max.   :58.900   Max.   :31.800 
```
##Scatterplot
This scatterplot compares the weight(carat) against the price.
```{r, echo=FALSE}
plot(~carat+price, data=diamonds)
```
![](https://github.com/vkatsemba/DevelopingDataProducts/blob/master/DiamondScatterPlot.png?raw=TRUE)