Example ai projects and code samples to use and learn from.

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Mark V SQL - Mark Vaillancourt: Data Nerd

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Applying data science to business and financial analysis

In the last posts (Series of Time Series), I have explained about what is ARIMA, what is d,p, and q in ARIMA (p,d,q). In this post, I will talk about how to use ARIMA for forecasting and how to handle…

Data science students often focus on machine learning algorithms, overlooking some of the more routine but important skills of the profession. I’ve lost count of the number of times I have advised…

R scripts in Power BIs query editor are a very convenient way to quickly expand your analytical toolbox. Here are some points to watch out for:

A very convenient way to store your collection of R (or M-) functions in Power BI is a record which serves as a function library: R-function-library

Zoe Helps Me Answer a Long-Simmering Question This summer we welcomed Zoe Stein (an Industrial Engineering major from Georgia Tech) to the team for a summe

Forecasting is when we anticipate the behavior of lots of people on long timelines. Predictive Analytics anticipate the behavior of One person...

There are new HTML 5 enabled custom visualization for making interactive R visualizations in Power BI Desktop. Read the documentation and find the download links here . Because of the dependency on R packages that are loaded with the R library command.

Using the R Script in Power BI does not exclusively have to be for advanced transformations or for connecting to sources that Power BI does not easily ingest. Sometimes, the R Script is simply fast…

DAX Patterns is a collection of ready-to-use data models and formulas in DAX, which is the programming language of PowerPivot. Create your Excel data model faster by using a DAX pattern!

Scenario A retail firm believes that its sales are driven by an external index that we will call the "Real Wage Index". This index tracks real hourly wages adjusted for inflation, seasonality, etc. The retail firm believes that this index is a 3-month leading indicator, meaning that when the index g...

Technical articles, content and resources for IT Professionals working in Microsoft technologies

Back to Part 1 Download this workbook Here The Formula for the Slope of a Linear Regression Line.  It’s Greek to Me.(Get it?  Gree

Out of 407 Total Combinations of Subcategory and Region, These 8 Stand Out This Month (These 8 Combinations Differed GREATLY from their Respective 12-month