Articles by ramhiser

Conway’s Game of Life in R with ggplot2 and animation

June 5, 2011 | 0 Comments

In undergrad I had a computer science professor that piqued my interest in applied mathematics, beginning with Conway’s Game of Life. At first, the Game of Life (not the board game) appears to be quite simple — perhaps, too simple — but it has been widely explored and is useful for ... [Read more...]

Automatic Simulation Queueing in R

December 28, 2010 | 0 Comments

I spend much of my time writing R code for simulations to compare the supervised classification methods that I have developed with similar classifiers from the literature.  A large challenge is to determine which datasets (whether artificial/simulated or real) are interesting comparisons.  Even if we restricted ourselves to multivariate ... [Read more...]

Autocorrelation Matrix in R

December 25, 2010 | 0 Comments

I have been simulating a lot of data lately  with various covariance (correlation) structures, and one that I have been using is the autocorrelation (or autoregressive) structure, where there is a “lag” between variables. The matrix is a v-dimension matrix of the form $$\begin{bmatrix} 1 & \rho & \rho^2 & \dots & \rho^{v-1}\\ \... [Read more...]

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)