abs()
The abs() function will produce the absolute value for a number.
Example:
Example:
The code below will take the residuals from the empty model for Thumb in the Fingers data frame, and give back their absolute value.
empty_model <- lm(Thumb ~ NULL, data = Fingers)
Fingers$Residual <- resid(empty_model)
abs(Fingers$Residual)
Example output:
