Fasten your seat belts – it’s time to put the pedal to the metal. In this segment, we’re going to burn rubber and unleash the full fury of the advanced RPM model on the unsuspecting burglary data! We will pop the hood and take a sneak peek at the drive…
Tag: predictive modeling
RPM Part 2: How to use predictive modeling with SAS to analyze crime data
So… what ‘cha gonna do? Use it or Peruse it? SAS Rapid Predictive Modeler (RPM) cranks out models like nobody’s business, and like the academy awards presentation will just “give you the envelope please.” If your data is super clean, this mig…
How to use predictive modeling with SAS to analyze crime
Did you ever wonder why one place is more likely to experience burglaries than another? Maybe you want to move to a new neighborhood and make sure it has as much going for it as possible before you load up the truck. I found some data at the Universi…
Kaggle Digit Recoginizer: SAS k-Nearest Neighbor solution
Kaggle is hosting an educational data mining competition: Kaggle Digit Recognizer, using MNIST data. Handwritten digit recognition is one of the few applications that kNN classifier performs well. Of course, the benchmark kNN classifier provided …
KNN Classification and Regression in SAS
kNN stands for k Nearest Neighbor. In data mining and predictive modeling, it refers to a memory-based (or instance-based) algorithm for classification and regression problems. It is a widely used algorithm with many successfully applications in medi…
Obtain Trace of the Projection Matrix in a Linear Regression
Recently, I am working on coding in SAS for a set of regularized regressions and need to compute trace of the projection matrix:
S=X(X’X + \lambda I)^{-1}X’.
Trace of the project matrix S is a key concept in modern regression analysis. For example, …
Obtain Trace of the Projection Matrix in a Linear Regression
Recently, I am working on coding in SAS for a set of regularized regressions and need to compute trace of the projection matrix:
S=X(X’X + \lambda I)^{-1}X’.
Wikipedia has a well written introduction to Trace @ here.
Trace of the project matrix S i…
Obtain Trace of the Projection Matrix in a Linear Regression
Recently, I am working on coding in SAS for a set of regularized regressions and need to compute trace of the projection matrix:
$$ S=X(X’X + \lambda I)^{-1}X’ $$.
Wikipedia has a well written introduction to Trace @ here.
To obtain the inverse of …