An R Introduction to Statistics


Hierarchical Cluster Analysis

  With the distance matrix found in previous tutorial, we can use various techniques of cluster analysis for relationship discovery. For example, in the data set mtcars, we can run the distance matrix with hclust, and plot a dendrogram that displays a hierarchical relationship among the vehicles.

Installing GPU Packages

After installing the CUDA Toolkit and R, you can download and extract the latest rpux package in a local folder, and proceed to install rpudplus on your operating system.

Comparison of Two Population Proportions

A tutorial on statistical inference about difference between two population proportions.

Population Mean Between Two Matched Samples

A tutorial on statistical inference about population mean between two matched samples.

Data Import

A tutorial on import data frame from external data files into the workspace.

Point Estimate of Population Proportion

A tutorial on computing the point estimate of population proportion from a simple random sample.

Sampling Size of Population Mean

A tutorial on computing the sampling size for the desired margin of error of population mean estimate at given confidence level.