
Recent Posts
 RcppArmadillo Test Notes – A StepbyStep Tutorial to Create Your Own R Package Based on RcppArmadillo
 .m Function to .oct File – Syntax Translation Table
 Blender for Data Visualization – Updated Code for Blender 2.6
 Blender for Data Visualization Part 2 – Render Output as Vector Graphics
 Central Limit Theorem, Normal Distribution and Entropy
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Author Archives: Bruce Zhou
RcppArmadillo Test Notes – A StepbyStep Tutorial to Create Your Own R Package Based on RcppArmadillo
Test environment: R version 3.2.2 Rtools 33 Windows 7 64bit 1. Install the packages “Rcpp”, “RcppArmadillo” and “inline” for R. 2. Download and install Rtools at https://cran.rproject.org/bin/windows/Rtools/, which is needed for building packages for R under Microsoft Windows. When installing, … Continue reading
.m Function to .oct File – Syntax Translation Table
One of the things Octave is superior to Matlab is Octave’s C++ code interface – OctFiles. With OctFiles, you can use a similar syntax in C++ as in the m language, which is much more convenient than the Matlab’s .mex … Continue reading
Posted in matlab/octave, programming
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Blender for Data Visualization – Updated Code for Blender 2.6
Finally I updated the data visualization code from Blender 2.49 to Blender 2.6. You can find the updated Python source code here: https://bzstat.googlecode.com/svn/trunk/DataVisualization/Blender/Update_2.6 The Blender Python APIs changed a lot since Blender 2.5, but the biggest problem is lack of … Continue reading
Posted in data visualization, programming
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Blender for Data Visualization Part 2 – Render Output as Vector Graphics
In my last post, I showed you the basics to use Blender and Python for data visualization. Python is a powerful language which is very suitable for (large) data set processing, we may further explore it later. Blender is one … Continue reading
Posted in data visualization, programming
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Central Limit Theorem, Normal Distribution and Entropy
A simple form of The Central Limit Theorem: For identically independent distributed random vectors ; let . If , . When I first learn the central limit theorem, I’m always curious why the sum of a large number of random … Continue reading
Posted in asymptotic, entropy, probability
3 Comments
Blender for Data Visualization
There are many tools and languages for visualizing data, such as R (1 , 2, 3), Processing, Flash (1, 2, 3). And the powerful open source 3D editor Blender is of course one of them. The advantage of using Blender … Continue reading
Posted in data visualization, programming
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Using SDL and OpenGL in R
SDL(Simple DirectMedia Layer) is “A crossplatform 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 crossplatform framework for dynamic binding of … Continue reading
Posted in programming, r
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