Published in MLearning.ai·Pinned3 Steps to Consider BEFORE Deciding to Impute Missing DataYour data sets will more often than not contain missing values. Every data analyst, regardless of experience, has to deal with this. Missing data becomes especially problematic when using data algorithm-based models, since most models will fail when missing values are present. …Data Science6 min readData Science6 min read
PinnedTableau Maps: How to Use Geographic Shapefiles to Query DataOne of the key features of GIS mapping software is the ability to identify points like building addresses, which fall into a geographic definition like a ZIP code. Until recently, the data file with addresses needed a pre-defined variable that had each address already assigned with a ZIP code to…Tableau4 min readTableau4 min read
Published in MLearning.ai·Jul 5Three Simple Methods for Dealing with Outliers in Regression AnalysisMy Motivation for Writing on This Topic As a freelancer, I am often asked to explain how I handle outliers in my data analysis. As a long-time economist, my first answer is always “it depends” which is followed by the most important part of my answer: why it depends. In this post, I will discuss how to…Outliers7 min readOutliers7 min read
Published in MLearning.ai·Jun 1Don’t Tell Anyone, But Linear Regressions With Continous Independent Variables Are, On Average, Easy to UnderstandIn a previous post, Understanding Linear Regression Is So Simple a Manager Could Do It, I described how to use linear regression models with binary (0,1) variables to find the mean of the dependent variable by group. …Linear Regression6 min readLinear Regression6 min read
Published in MLearning.ai·May 27Understanding Linear Regression Is So Simple a Manager Could Do ItOk, I’ll admit that this title is snarky and unfair, but it just got stuck in my head and so I went with it. Shortly after starting a position with a new employer, I proposed a research project to my supervisor that included a linear regression model. The supervisor explained…Linear Regression6 min readLinear Regression6 min read
