The Pleasure of Finding Things Out

Creating R Packages with devtools and roxygen

Updating sample mean and variance to account for new observations without full recalculation

Derivation of the Poisson Distribution as a Limiting Case of the Binomial PDF

Smoothed Empirical Percentile Matching with Python implementation

Four Approaches to Loss Triangle Creation in R

Polynomial interpolation via Newton’s divided differences

A matrix factorization approach to linear regression

A simple, effective PDF harvester in Python

Computing the product of a variable number of columns using data.table

Creating runoff triangles in R

Data aggregation with data.table

Using the Freedman-Diaconis Rule to determine optimal histogram bin width

Finding logLikelihood estimates using optim in R

Finding roots of equations in R with uniroot

Generating correlated boostrap reserve estimates with R

Gibbs sampling approaches for Bayesian linear regression

Using parameterized decorators in Python with applications

Performing rolling joins with data.table

Querying SQL Server from R on Windows

Querying SQL server with Pandas

Smoothing data with cubic spline approaches

Speeding Up R Code with Rcpp

Using R’s Socket Interface for Interprocess Communication

Visualizing Population Density by Zip Code with basemap

Working with SQLite in R