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Data Visualization
Sanjay Matange 0
Dashboard graphs

In this blog we have been discussing graphs useful for analysis of data for many domains such as clinical research, forecasting and more.  SG Procedures and GTL are particularly suited for these use cases.  So, when I came upon a dashboard image from Steven Few's Visual Business Intelligence blog, showing the

Advanced Analytics
Rick Wicklin 0
What is Mahalanobis distance?

I previously described how to use Mahalanobis distance to find outliers in multivariate data. This article takes a closer look at Mahalanobis distance. A subsequent article will describe how you can compute Mahalanobis distance. Distance in standard units In statistics, we sometimes measure "nearness" or "farness" in terms of the

Data Visualization
Sanjay Matange 0
Beer, diapers and heat map

The parable of beer and diapers is often related when teaching data mining techniques.  Whether fact or fiction, a Heat Map is useful to view the claimed associations.  A co-worker recently enquired about possible ways to display associations or dependency between variables.  One option is to show the dependency as a node

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