Articles by datadrumstick

Binomial Logistic Regression.

October 2, 2016 | datadrumstick

I’m officially a Kaggler. Cut to the good ol’ Titanic challenge. Ol’ is right – It’s been running since 2012 and ends in 3 months! I showed up late to the party. Oh well, I guess it’s full steam ahead from now on. The competition  ‘Machine Learning from Disaster’ asks ...
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Stepwise Regression – What’s not to like ?

September 18, 2016 | datadrumstick

  Plenty, apparently. Besides encouraging you not to think , it doesn’t exactly do a great job at what it claims to do. Given a set of predictors, there is no guarantee that stepwise regression will find the optimal combination. Many of my statisticians buddies , whom I consult from time to ... [Read more...]

Multiple Regression (sans interactions) : A case study.

September 16, 2016 | datadrumstick

Dataset: state.x77 – Standard built-in dataset with 50 rows and 8 columns giving the following statistics in the respective columns. Population: population estimate as of July 1, 1975 Income: per capita income (1974) Illiteracy: illiteracy (1970, percent of population) Life Exp: life expectancy in years (1969–71) Murder: murder and non-negligent manslaughter rate per 100,000 population (1976) HS Grad: percent ...
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