In my last article I talked about Time Series Analysis using R and left with simple exponential smoothing. Here I want to talk about more advanced smoothing methods. Holt’s Exponential Smoothing If […]
What is Time Series Analysis, Part II
What is Time Series Analysis? Part I
This article shows you how to use the R statistical software to carry out some simple analyses that are common in analyzing time series data. If the reader has some basic knowledge […]
Here’s the thing…more advice for young analysts
I have been get a lot of very good questions from young analysts seeking to carve out their niche in our domain. Last year I wrote a short article with some advice […]
27 Free Data Mining Books
As you know, here at DataOnFocus we love to share information, specially about data sciences and related subjects. And what is one of the best ways to learn about a specific topic? […]
Data Fitting with R
What is Data Fitting? Introduction Fitting distributions consists of finding a mathematical function which represents a statistical variable. Data scientists and statisticians are often faced with this problem: they have some observations […]
What is a Data Scientist and How Do I Become One?
What exactly is it that data scientists do? Why does everyone want one? And, how do you become one? These are the some of the key questions circulating as the term “data […]
Graphics R Tricky
R is good for a lot of stuff. I have used it for cluster analysis, uplift modeling, logistic regression, and so on. I have also used SAS for the same things. For […]
Classification Trees using R
Basic Ideas Use of Classification Trees Classification trees are used to predict membership of cases or objects in the classes of a categorical dependent variable from their measurements on one or more […]
A 5-step guide to data visualization
How to display data in a meaningful way – some dos and don’ts. Data has been described as the new raw material for business and the “oil of the 21st century.” The […]
Increase the Success Rate of BI Initiatives
Measuring Success “Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something, you can’t understand it. If you can’t understand it, you can’t control […]
BI Corner 