Since I have been teaching data analytics in India for the past month, I have been searching for an example of text analytics using R. Several months ago I saw a demonstration […]

## What Do Analytics Consultants Do? Part 1

I am often asked about the kinds of Analytics I perform as a consultant to address the questions my clients pose. The “real question” behind this is: What kind of Analytics do […]

## Time Series – Interventions and Contribution

Introduction This article illustrates an analysis of the President George W. Bush’s job approval from January 2001 through Sep 2004 with disposable income excluded from the statistical model. Presidents with a job […]

## What’s up with Gold?

A colleague recently asked me perform a time series analysis of gold prices and forecast future prices with the assumption that they would continue to decline. In this analysis with will not […]

## Two General Aspects of Time Series Patterns

Introduction Though I have discussed other components of time series data, I can describe most time series patterns in terms of two basic classes of components: trend and seasonality. The first represents a […]

## Moving averages

In a recent post “Components of Time Series Data“, I talked about decomposing a time series into its component parts and in “Exponential Smoothing of Times Series Data in R“, I talked about […]

## Exponential Smoothing of Time Series Data in R

This article is not about smoothing ore into gems though your may find a few gems herein. Systematic Pattern and Random Noise In “Components of Time Series Data”, I discussed the components […]

## Components of Time Series Data

In “What is Time Series Analysis?” I presented some basic concepts and uses for time series models, but I did not write much about time series data. Here we will explore characteristics […]

## Unobserved Component Models in R

Introduction In my last Time Series article, “Components of Time Series Data,” I discussed the trend, seasonal and cyclical components of time series data. Here I will discuss an effective method for […]

## What is Time Series Analysis?

This article outlines the basic principles of times series analysis for non-analysts. A more detailed technical treatment is provided at the end. What is Time Series Data? In order to approach time series […]