Modern R Programming Cookbook

How it works…

The first step is to write both functions, one using switch and another using the if…else if…else statement. Once the function writing part is completed, you can calculate the elapsed time of a certain operation. To see the calculation time, use the microbenchmark() library in R. The microbenchmark() function takes two alternative functions as input and also another input telling the function how many times the repetition should be done. The output of the microbenchmark() function is in microseconds. The output essentially shows that the switch option takes less time than if…else if…else.