statistical-data-analysis

This contains the schoolwork of HKU course - Statistical Data Analysis.

analysis_boston_housing.Rmd contains statistical data analysis of Boston Housing Price Data.

review.Rmd contains the statistical data analysis cheatsheet, which is a condensed R codes for the course material.

Review.Rmd contents:

• Descriptive stats
• Compare two groups og continuous variables
  • Testing for group mean (1 group / 2 groups)
• ANOVA testing homogeneity of k pop means
• Compare Distribution of 2 groups
• Variance stablizing transformation
• Comparing 2 groups of CATEGORICAL
  • Testing for one/two sample(s) case
• Linear Regression
• Model selection
  • best subset selection
  • Sequential selection method
• Model Diagnostics on model error
  • Non-linearity
  • Non-constant variance (Variance Stablising Transformation)
  • Non-normality
  • Unusual Observations: Outliers and influential observations
  • Multicollinearity
• One Way ANOVA (multiple K groups)
• ANCOVA
• Two-way ANOVA
• Logistic Regression
  • GLM
  • Logistic regression model
  • Goodness of fit tests
• Poisson log-linear model
  • Model Rate data - Offset
  • Over-dispersion