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What is the replicate() function in R?

Onyejiaku Theophilus Chidalu

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Overview

The replicate() function in R creates a repeated expression or function for a specified number of times.

Syntax

The replicate() function takes the syntax below:

replicate(x, ...)
The syntax for the replicate() function in R

Parameter value

The replicate() function takes the following parameter values:

  • x: This is the expression or statement to be evaluated or repeated. It is a required parameter.
  • ...: This is the number of times for the replication. This is also a required parameter.

Example 1

In the code below, we create a sequence of numbers from 1 to 5 which increments by 1. This sequence is repeated 5 times:

# A code to illustrate the replicate() function in R
replicate(5, seq(1,5,1))
Implement the replicate() function

Example 2

In the code below, we use the replicate() function to repeat a function, rnorm(). This is used to obtain the normal distribution for a value, 4, whose mean value is 5. This will be repeated 5 times:

# A code to illustrate the replicate() function
replicate(5, rnorm(4, mean=5))
Implement the replicate() function

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Onyejiaku Theophilus Chidalu

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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