Learning Quantitative Finance with R

Loops (for, while, if, and if...else)

Loops are instructions for automating a multistep process by organizing sequences of actions by grouping the parts which need to be repeated. All the programming languages come up with built-in constructs, which allow the repetition of instructions or blocks of instructions. In programming languages, there are two types of loops.

Decision-making is one of the significant components of programming languages. This can be achieved in R programming by using the conditional statement if...else. The syntax, along with an example, is given here.

Let us first discuss if and else conditional statements and then we will discuss loops.

if statement

Let us first see how if and else work in R. The general syntax for an if ...