Monthly Archives: October 2011

Using SDL and OpenGL in R

SDL(Simple DirectMedia Layer) is “A cross-platform multimedia library designed to provide fast access to the graphics framebuffer and audio device”. OpenGL is “The Industry Standard for High Performance Graphics”. With rdyncall package, which¬†provides “a cross-platform framework for dynamic binding of … Continue reading

Posted in programming, r | 1 Comment

Spaces and Convergences

Metric spaces: a set where a notion of distance (called a metric) between elements of the set is defined. Vector spaces or Linear space: a mathematical structure formed by a collection of vectors. Normed vector spaces: a Vector space with … Continue reading

Posted in convergence, space | 1 Comment

Understand the Maximum Likelihood Estimation

Let , be iid random vector with density or probability function , where is the unknown parameter and suppose the true value of is . The likelihood function: The logarithm likelihood function: Note that these two functions are actually joint … Continue reading

Posted in statistics | Leave a comment