Nathan at Flowingata put up another interesting challenge today to improve the following graphic showing obesity trends in America. Here’s my attempt: I transposed the data so that the cohorts are on the X axis and each separate line represents an age group. So each line shows the percentage of obese people in a particular
Is out. On sourceforge. Along with a new rjags. Thanks Martyn. I’m looking forward to working my way through some of the improvements, which include block-updating of parameters in GLMs more use of R’s d/p/q family of functions for den...
INCREDIBLY SIMPLE CALCULATIONS MADE SIMPLE Yes, we all know how to calculate 15% or 20% exactly, but it’s fun to use tipping heuristics and even more fun to make crowded graphs of how they compare to each other. (Sorry for the junky chart. Open for suggestions, in the words of Tom Waits.) Here are a
I've been doing some research lately regarding types of spectral imaging and decomposition techniques that apply to non-stationary signals. As mentioned earlier, one of the major problems with the simple fourier analysis is that the basis functions ext...
Update: Statistical Analysis with R is now available!I am writing to update you on the progress of my R Beginner's Guide book, which is to be published through Packt. I have really gotten to work over the past couple months and have recently completed ...
Update: Statistical Analysis with R is now available!I am writing to update you on the progress of my R Beginner's Guide book, which is to be published through Packt. I have really gotten to work over the past couple months and have recently completed ...
I think pgfSweave should replace the default of Sweave system because it brings significant improvements over the original Sweave. I certain have made it my default Sweave tool on my system.------------------------------- EDITED ON MAY 1, 2010 --------...
How to use Eclipse and StatET to create a handy-dandy development environment for R. Using the Eclipse environment provides a nice colored-syntax script editor, an R console, and an object browser to let you peruse the variables you've put into memory....
bwplot annotation example
Sometimes you want to add a little text to box and whisker plots produced by the lattice function bwplot(). Here is one approach. Could be optimized a bit more to reduce manual specification of some elements. Suggestions...
The simple linear regression model considers the relationship between two variables and in many cases more information will be available that can be used to extend the model. For example, there might be a categorical variable (sometimes known as a covariate) that can be used to divide the data set to fit a separate linear
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
