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Statistics and Machine Learning R scripts

Misc Machine Learning and statistical analysis code examples in R

Packages used/demonstrated

Supervised learning (Regression and Classification)

Linear regression
Poisson regression

* Stepwise selection method * LASSO, Ridge, and Elastic Net regularization methods

* Residual analysis * Spline regression

* Logistic regression

* Support vector machine

* k-Nearest Neighbor * Decision Tree * Random Forest

* Feedforward neural network

Unsupervised learning

k-means Clustering

* Principal Component Analysis (PCA)

Statistics/Data wrangling

Missing data imputation
Demo of Central Limit Theorem'
Outlier detection using Grubb's test
Cumulative Sum (CUSUM) for change detection
Demo of Hypothesis shopping (why you should be suspicious of p-Values)