ZHANG, Ruda October 25, 2022:  Correct math. [d12b9f2]
ZHANG, Ruda October 24, 2022:  Add linear and rank correlation coefficients. [dbb2ff0]
ZHANG, Ruda March 09, 2021:  Defind mode, median; more on Gaussian rv, probabilistic models on matrix manifolds. [7c5a23c]
ZHANG, Ruda June 07, 2020:  Format math. [8fd6378]
ZHANG, Ruda March 27, 2020:  More on probability and statistics. [3ffc48d]
ZHANG, Ruda January 18, 2020:  Use probabilistic model, not probability model. [127e581]
ZHANG, Ruda November 24, 2019:  Add climate econometrics; more edits. [a8291fb]
ZHANG, Ruda May 08, 2019:  More on NBG set theory. [b78560f]
ZHANG, Ruda September 30, 2018:  CSS redesign; more edits. [dd44d96]
ZHANG, Ruda July 18, 2018:  More on MLE, MME [81a9c52]
ZHANG, Ruda March 23, 2018:  Global remove trailing whitespaces [2b7ff90]
ZHANG, Ruda October 16, 2017:  regression and econometrics [7154d42]
ZHANG, Ruda October 16, 2017:  Sample and statistic [20d464d]
ZHANG, Ruda October 15, 2017:  separate econometrics and regression inference [b2083ef]
ZHANG, Ruda October 14, 2017:  Clean up. [d8f68e0]
ZHANG, Ruda October 14, 2017:  Merge computational and statistical learning. [a493a55]
ZHANG, Ruda October 14, 2017:  Statistics and statistical inference [7732699]
ZHANG, Ruda October 14, 2017:  Overwrite Simple Linear Regression as Statistical Learning [4eabf19]
ZHANG, Ruda October 13, 2017:  Count data models, large-scale testing [b4a99ec]
Ruda Zhang August 07, 2016:  Add EditorConfig rules. [e14967d]
Ruda Zhang June 26, 2016:  one sentence per line [e15360a]
Ruda Zhang June 26, 2016:  add category tag to wiki pages [a9b356c]
Ruda Zhang June 26, 2016:  Use internal link for wiki pages. [22daaba]
Ruda Zhang June 26, 2016:  fix pdf link path and use external link style [570ec4f]
Ruda Zhang June 26, 2016:  use canonical filename and no internal H1 [eeca8ff]