R - log10() Function

The R log10() function returns the base-10 logarithm of a given number. In special cases it returns the following:

• If the argument is NaN or less than zero, then the result is NaN.
• If the argument is positive infinity, then the result is positive infinity.
• If the argument is zero, then the result is negative infinity.

Syntax

log10(x)

Parameters

Return Value

Returns the base-10 logarithm of the value.

Example:

In the example below, log10() function is used to calculate the base-10 logarithm of a given number.

#operating on single element atomic vector
print(log10(0))
print(log10(0.5))
print(log10(1))

cat("\nOperating on vector\n")
#operating on vector
v <- c(5, 10, 50)
print(log10(v))

cat("\nOperating on matrix\n")
#operating on matrix
m <- matrix(c(1, 10, 50, 100, 500, NaN), nrow=2)
print(log10(m))

cat("\nOperating on first column of matrix\n")
#operating on first column of matrix
print(log10(m[,1]))

The output of the above code will be:

[1] -Inf
[1] -0.30103
[1] 0

Operating on vector
[1] 0.69897 1.00000 1.69897

Operating on matrix
     [,1]    [,2]    [,3]
[1,]    0 1.69897 2.69897
[2,]    1 2.00000     NaN

Operating on first column of matrix
[1] 0 1