Draw a Quantile-Quantile Plot in R Programming – qqline() Function
The Quantile-Quantile Plot in Programming Language, or (Q-Q Plot) is defined as a value of two variables that are plotted corresponding to each other and check whether the distributions of two variables are similar or not with respect to the locations. qqline() function in R Language is used to draw a Q-Q Line Plot.
R – Quantile-Quantile Plot
Syntax: qqline(x, y, col)
- x, y: X and Y coordinates of plot
- col: It defines color
Returns: A QQ Line plot of the coordinates provided
Quantile-Quantile Plot in R Example
Example 1: Implementation of Basic QQplot Interpretation using qqline() Function in R
Above is a representation of QQplot of Normally Distributed Random Numbers.
Example 2: Implementation of QQplot of Logistically Distributed Values
Above is the Q-Q Plot of theoretical quantiles.