tapply
R Tutorials
- R Introduction
- Elementary Statistics with R
- Qualitative Data
- Quantitative Data
- Numerical Measures
- Probability Distributions
- Interval Estimation
- Hypothesis Testing
- Lower Tail Test of Population Mean with Known Variance
- Upper Tail Test of Population Mean with Known Variance
- Two-Tailed Test of Population Mean with Known Variance
- Lower Tail Test of Population Mean with Unknown Variance
- Upper Tail Test of Population Mean with Unknown Variance
- Two-Tailed Test of Population Mean with Unknown Variance
- Lower Tail Test of Population Proportion
- Upper Tail Test of Population Proportion
- Two-Tailed Test of Population Proportion
- Type II Error
- Type II Error in Lower Tail Test of Population Mean with Known Variance
- Type II Error in Upper Tail Test of Population Mean with Known Variance
- Type II Error in Two-Tailed Test of Population Mean with Known Variance
- Type II Error in Lower Tail Test of Population Mean with Unknown Variance
- Type II Error in Upper Tail Test of Population Mean with Unknown Variance
- Type II Error in Two-Tailed Test of Population Mean with Unknown Variance
- Inference About Two Populations
- Goodness of Fit
- Analysis of Variance
- Non-parametric Methods
- Simple Linear Regression
- Multiple Linear Regression
- Logistic Regression
- GPU Computing with R