
Recent Posts
 Matplotlib Quick Starter
 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
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Author Archives: Bruce Zhou
Matplotlib Quick Starter
Introduction Matplotlib is an open source plotting library for Python (NumPy), designed closely to MATLAB. Last update to this tutorial is on: 20170420. Installation Python 3.X (with many useful libs such NumPy, Matplotlib) & Jupyter notebook (GUI Python Code Editor, … Continue reading
Posted in data visualization, programming, Python
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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 Install the packages “Rcpp”, “RcppArmadillo” and “inline” for R. 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, check the … 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, Python
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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, Python
4 Comments
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
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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, Python
4 Comments