Logarithm in R – How to Apply the log() Function (2 Examples)

In this R programming tutorial you’ll learn how to compute logarithms using the log function.

Construction of Exemplifying Data

x <- c(5, 1, 4, 8, 99)        # Create numeric vector
x                             # Return vector to console
# 5  1  4  8 99

Example 1: Basic Application of log() Function in R

log(x)                        # Using log function
# 1.609438 0.000000 1.386294 2.079442 4.595120

Example 2: Change Base of log Function

log(x, base = 2)              # Specifying base of 2
# 2.321928 0.000000 2.000000 3.000000 6.629357
log2(x)                       # Using log2 function (same result)
# 2.321928 0.000000 2.000000 3.000000 6.629357
log(x, base = 10)             # Specifying base of 10
# 0.698970 0.000000 0.602060 0.903090 1.995635
log10(x)                      # Using log10 function (same result)
# 0.698970 0.000000 0.602060 0.903090 1.995635

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