Absolute function in R – abs(), computes the absolute value of numeric data. abs() function in R is used to get the absolute value of Column in a dataframe, Absolute value of the matrix and vectors. Let’s see an example for each on how absolute method is used.
Syntax for absolute function in R:
#abs function in R - abs abs(-12.5) abs(12.5)
output:
[1] 12.5
[1] 12.5
absolute of vectors in R:
# absolute function in R- abs,for vector x = c(-2.2,3.4,0,3.45,8,-4.5) abs(x)
output:
[1] 2.20 3.40 0.00 3.45 8.00 4.50
absolute of matrix in R:
# absolute function for matrix in R x = matrix(c(-2,3,-5,3,-6,4),nrow=3,ncol=2,byrow=TRUE) abs(x)
all the negative values of a matrix are turned to positive in above abs function
output:
[,1] [,2]
[1,] 2 3
[2,] 5 3
[3,] 6 4
Absolute value of column in R data frame :
lets use the below data frame in R to demonstrate absolute method for data frame.
# absolute function for a data frame in R df$Absolute_Score = abs(df$Score) df
in the above example, absolute function is applied to a column named “Score” in df data frame.
so the output will be
