How to calculate the log2() of a value in R
The log2() function in
Figure 1 below shows the mathematical representation of the log2() function.
Syntax
log2(number);
Parameter
This function requires a number whose logarithm base 2 must be calculated at greater than zero.
-
If the number is
zero, then this function outputs-Inf. -
If the number is
negative, then this function outputsNaNalong with a warning message.
Return value
log2() returns the logarithm of a number to the base 2.
Code
a <- log2(10);print(paste0("log2(10): ", a))b <- log2(2);print(paste0("log2(2): ", b))c <- log2(15.2);print(paste0("log2(15.2): ", c))#error outputsd <- log2(0);print(paste0("log2(0): ", d))e <- log2(-1);print(paste0("log2(-1): ", e))
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