Quantile plots
-
1D: Compares distributions (single-variable). Image
-
2D: Visualizes relationships (joint-variable focus). image
| Aspect | 1D Quantile Plot (Q-Q Plot) | 2D Quantile Plot |
|---|---|---|
| Definition | Compares the quantiles of a dataset to another distribution. | Visualizes the joint distribution of two variables using quantiles. |
| Purpose | Identify deviations like skewness or outliers. Distribution analysis (e.g., normality checks). |
Examine density patterns or dependencies. Joint distribution analysis (e.g., correlation, clustering). |
| Example | Comparing data v normal distribution | Joint distribution for height and weight |