Certificate in R Programming

TABLE OF CONTENT

R Language Basics

• Overview of R Programming Language
• Installing R
• R Interactive Command Line
• R Scripts
• Hello World
• R Data types
• Comments
• Constants and Variables
• Operators
• R Conditional Statements
• R Functions
• R Arrays
• R Strings
• R Lists
• Vectors in R
• R Matrices
• Factors in R
• Data Frames in R
• R Package and Repositories

Introduction to Statistics

• Terminologies
• Inferential Statistics
• Descriptive Statistics
• Frequency Distribution
• Cumulative Frequency Distribution
• Central Limit Theorem
• Valid Statistical Conclusions
• Graphical Methods
• Univariate Analysis
• Bivariate Analysis
• Regression

Introduction to Probability

• Concepts
• Permutation and Combination
• Probabilistic Distributions
• Continuous Variables PDFs
• Discrete Variables PDFs

Regression Modelling

• Regression Modeling Basics
• Correlation and Regression Coefficient
• Linear Regression
• Interpreting Regression Results
• Interaction Effects
• Residual Analysis
• Cook’s Distance
• Hypothesis Testing
• k-Fold Cross Validation
• GAM - Generalized Additive Models

Classification Models

• Naive Bayes Classifier
• k-Nearest Neighbors Classifier
• RPart, cTree, and C5.0
• caret Package
• Variable selection with RFE, varImp, and Boruta

Machine Learning

• Random Forest Classifier
• Gradient Boosting and GBM
• Regularization - Ridge, Lasso, and Elasticnet
• XGBoost

Unsupervised Learning

• Clustering
• k-means Clustering
• Principal Components Analysis
• Determining Optimum Number of Clusters
• Hierarchical Clustering
• Affinity Propagation
• Building Recommendation Engines

Time Series Analysis and Forecasting

• Stationarity, De-Trend, and De-Seasonalize
• Lags, ACF, PACF, and CCF
• Moving Average and Exponential Smoothing
• Double Exponential and Holt Winters
• ARIMA Modelling

Text Analytics

• Corpus, TDM, TF-IDF, and Word Cloud
• Cosine Similarity and Latent Semantic Analysis
• Extracting Topics with Latent Dirichlet Allocation
• Sentiment Scoring with tidytext and Syuzhet
• Classifying Texts with RTextTools

ggplot2

• Installation
• Usage
• ggplot df
• The Layers
• The Labels
• The Theme
• The Facets
• Plot multiple timeseries on same ggplot
• Bar charts
• Adjust X and Y axis limits
• Legend - Deleting and Changing Position
• Plot margin and background
• Annotation

Speeding Up R Code

• doParallel and foreach
• DPlyR
• Data.Table
• RCpp

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