Blog


Where I write.

R PCA Example


Bernoulli vs Multinoulli (Categorical) vs Binomial vs Multinomial / Gaussian / Poisson Distributions


Conditional Probability


Probability


Machine Learning: Dimensionality Reduction

A Note from Ng


Covariance and Correlation

协方差与相关系数


Moment, Expectation, Variance, Skewness and Kurtosis

矩、期望、方差、偏度与峰度


R Exploratory Data Analysis: Air Pollution Case Study


R: Saving, Loading and Removing in-memory Data


R: Getting and Cleaning Data