Monthly Archives: February 2010

Linux Server Profiling: Using Open Source Tools For Bottleneck Analysis

February 9, 2010
By

This tutorial covers profiling of Linux servers using open-source tools such as "iostat", "oprofile" and "blktrace". Both processor-bound and I/O-bound cases are covered, and the emphasis is on tools that provide visual displays of relevant metrics. Li...

Read more »

Spatial Statistics in R: An Introduction

February 8, 2010
By

Presentation given by John Myles White on February 4, 2010 to the NYC R Statistical Meetup. During that talk John covers several techniques for performing spatial analytics in R.

Read more »

Python in Sweave document

February 8, 2010
By

Table of contents Modifications to the custom driver: Example usageLately I have been using a lot of Python for signal processing and I quite like SciPy. However, I have been missing something like Sweave, which is great literate programming environment for R. Today I managed to look a bit more into it and found this hack on how...

Read more »

Python in Sweave document

February 8, 2010
By

Table of contentsModifications to the custom driver: Example usageLately I have been using a lot of Python for signal processing and I quite like SciPy. However, I have been missing something like Sweave, which is great literate programming environment for R. Today I managed to look a bit more into it and found this hack on how...

Read more »

Spatial Analytics in R Video

February 8, 2010
By

The video from John Myles White’s outstanding introductory talk on spatial analysis with R to the NYC R Statistical Meetup is now available in the R video repository, and is also embedded after the jump. I would like to thank John for this fantastic talk, and for those interested the slides from this talk have also been

Read more »

Registration open for R/Finance 2010

February 8, 2010
By

Registrations are now open for the R/Finance 2010 conference, to be help April 16-17 in Chicago. Last year's meeting was a great success, and this year's looks to be just as good, with some great keynotes lined up: Analysis of Integrated and Co-integrated Time Series with R (Bernhard Pfaff) Leverage Space Portfolio Model (Ralph Vince) Signal Extraction (Marc Wildi0...

Read more »

Classification for stock directional prediction

February 8, 2010
By
Classification for stock directional prediction

The neural network tutorial focused on a type of method known as regression. The other common method utilized in machine learning is called classification. The two approaches are somewhat similar in that they identify the best possible curve to learn...

Read more »

Regression Modeling Strategies Course by Frank Harrell

February 8, 2010
By

Frank Harrell is teaching his 3-session short course on regression modeling strategies using R here at Vanderbilt next month. Frank is a professor and chair of the Vanderbilt Biostatistics Department, and the author of several massively popular R libra...

Read more »

R Tutorial Series: Basic Polynomial Regression

February 8, 2010
By
R Tutorial Series: Basic Polynomial Regression

Often times, a scatterplot reveals a pattern that seems not so linear. Polynomial regression can be used to explore a predictor at different levels of curvilinearity. This tutorial will demonstrate how polynomial regression can be used in a hierarchical fashion to best represent a dataset in R.Tutorial FilesBefore we begin, you may want to download the sample...

Read more »

R Tutorial Series: Basic Polynomial Regression

February 8, 2010
By
R Tutorial Series: Basic Polynomial Regression

Often times, a scatterplot reveals a pattern that seems not so linear. Polynomial regression can be used to explore a predictor at different levels of curvilinearity. This tutorial will demonstrate how polynomial regression can be used in a hierarchical fashion to best represent a dataset in R.Tutorial FilesBefore we begin, you may want to download the sample...

Read more »