Daniel Dittenhafer

Recently Published

Z Scores & Normal Distribution
This presentation reviews statistical Z scores and the normal distribution through the eyes of R code and specifically the pnorm function.
Bike Sharing Demand - Data Set Profile
An analysis and profile of the training data set provided as part of the Bike Sharing Demand Kaggle competition.
R Performance Study - Summing in Parallel
This performance study compares a simple task, the summation of a vector of integers, using various techniques in the R language including the old standard for loop, base R’s vectorized sum function, and a doParallel package implementation.