Articles by Scott Stoltzman

Seinfeld Characters – A Post About Nothing

May 14, 2020 | Scott Stoltzman

This post is dedicated to my mother - Seinfeld's greatest fan. Seinfeld is a classic TV sitcom. It featured four main characters surrounded by relatively normal, everyday, run-of-the-mill scenarios. In the spirit of Seinfeld, this post will also "be ab...

Who is The Average Customer?

April 9, 2020 | Scott Stoltzman

I hate to be the one to break it to you, but the average customer shouldn’t be that important to you. I’m not writing this to repeat the marketing rhetoric you hear about how “millennials” want massive amounts of choice, personalization, customization, etc. I’m here to tell ...

100 Days of Code – Completed!

April 10, 2019 | Scott Stoltzman

I finished the #100DaysOfCode challenge and it feels great! I will tell you a little a bit about my experience. Top 5 Takeaways: Sitting down and writing code every day is not easy Planning is critical to your success Staying motivated requires effort Being excited about your project makes a world ... [Read more...]

Exploratory Analysis – When to Choose R, Python, Tableau or a Combination

March 12, 2018 | Scott Stoltzman

Not all data analysis tools are created equal. Recently, I started looking into data sets to compete in Go Code Colorado (check it out if you live in CO). The problem with such diversity in data sets is finding a way to quickly visualize the data and do exploratory analysis. ... [Read more...]

Microsoft Cognitive Services Vision API in R

September 26, 2017 | Scott Stoltzman

Microsoft Cognitive Services Vision API in R A little while ago I did a brief tutorial of the Google Vision API using RoogleVision created by Mark Edmonson. I couldn’t find anything similar to that in R for the Microsoft Cognitive Services API so I thought I would give it ...

Exploratory Data Analysis of Tropical Storms in R

September 21, 2017 | Scott Stoltzman

Exploratory Data Analysis of Tropical Storms in R The disastrous impact of recent hurricanes, Harvey and Irma, generated a large influx of data within the online community. I was curious about the history of hurricanes and tropical storms so I found a data set on data.world and started some ...

US Immigration Enforcement – Part 1

August 7, 2017 | Scott Stoltzman

Trend of US Immigration Enforcement In the coming months I’ll be digging into the immigration enforcement data posted on data.world. I encourage anyone to take this data and either add to the project or to do something on their own. I will be bringing in external data sources ...

Google Vision API in R – RoogleVision

July 31, 2017 | Scott Stoltzman

Using the Google Vision API in R Utilizing RoogleVision After doing my post last month on OpenCV and face detection, I started looking into other algorithms used for pattern detection in images. As it turns out, Google has done a phenomenal job with their Vision API. It’s absolutely incredible ...

Face Recognition in R

June 22, 2017 | Scott Stoltzman

Face Recognition in R OpenCV is an incredibly powerful tool to have in your toolbox. I have had a lot of success using it in Python but very little success in R. I haven’t done too much other than searching Google but it seems as if “imager” and “videoplayR” ...

Hospital Infection Scores – R Shiny App

May 30, 2017 | Scott Stoltzman

Medicare Data – R Shiny App About two weeks ago I created an extremely rough version of an R Shiny Application surrounding Medicare data. Right after publishing the blog post, I received a lot of input for improvement and help from others. Here’s a look a look at the latest ...

Building a Medicare Shiny App – Part 1

May 15, 2017 | Scott Stoltzman

Hello R community. if you’re up for some fun tinkering with a Shiny App please join me on a new project. I would love to see some collaboration in designing a Shiny Application which will help people make a decision about a healthcare provider. I have only just begun ...

Rent Prices and TrelliscopeJS

April 24, 2017 | Scott Stoltzman

Rent Prices are Soaring in Most of Colorado Call it gentrification, supply-and-demand, call it whatever you’d like… the fact is, rent prices have gone up in Colorado in the last decade. Chip Oglesby – GitHub – did a nice analysis on the data provided by colorado.gov. Chip’s analysis can ...

Data Visualization – Part 3

April 7, 2017 | Scott Stoltzman

What Type of Data Visualization Do You Choose (if any)? Determining whether or not you need a visualization is step one. While it seems silly, this is probably something everyone (including myself) should be doing more often. A lot of times, it seems like a great way to showcase the ...

Data Visualization – Part 2

March 22, 2017 | Scott Stoltzman

A Quick Overview of the ggplot2 Package in R While it will be important to focus on theory, I want to explain the ggplot2 package because I will be using it throughout the rest of this series. Knowing how it works will keep the focus on the results rather than ... [Read more...]

Data Visualization – Part 1

March 15, 2017 | Scott Stoltzman

Introduction to Data Visualization – Theory, R & ggplot2 The topic of data visualization is very popular in the data science community. The market size for visualization products is valued at $4 Billion and is projected to reach $7 Billion by the end of 2022 according to Mordor Intelligence. While we have seen amazing advances […] [Read more...]

Random Forest Classification of Mushrooms

January 10, 2017 | Scott Stoltzman

A post on how to use the randomForest package in R to classify data. This focuses on classifying mushrooms as edible or poisonous.

City of Fort Collins Spending Analysis

January 5, 2017 | Scott Stoltzman

Stoltzmaniac is going local in today’s blog post! I dug into the City of Fort Collins open data and published my findings below. The data was surprisingly clean and laid out in JSON format on Amazon S3. This post shows my exploration of the data along with some observations. ...

Price Volatility – Basic Brownian Motion

December 23, 2016 | Scott Stoltzman

The Situation You are a consultant who has been hired by a business that sells one commodity product. On December 31st the price is $100 per unit. The business owner wants to know what to expect by the end of January. Your client gave you the message: Prices are based off ...

Price Volatility – Basic Brownian Motion

December 22, 2016 | Scott Stoltzman

You are a consultant who has been hired by a business that sells one commodity. The business owner wants to know what to expect by the end of January.

Seinfeld Characters – A Post About Nothing

December 15, 2016 | Scott Stoltzman

This post is dedicated to my mother – Seinfeld’s greatest fan. Seinfeld is a classic TV sitcom. It featured four main characters surrounded by relatively normal, everyday, run of the mill scenarios. In the spirit of Seinfeld, this post will also “be about nothing.” Load Required Libraries library(scales) library(...

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