Repeatedly Evaluate an Expression in R Programming - replicate() Function

Evaluate an Expression in R Programming - eval() Function

Last Updated : 19 Jun, 2020

eval() function in R Language is used to evaluate an expression passed to it as argument.

Syntax: eval(expr) Parameters: expr: expression to be evaluated

Example 1:

Python3 1==

# R program to evaluate an expression

# Calling eval() Function
eval(sin(pi / 3))
eval(5 + 2)
eval(cos(2))

Output:

[1] 0.8660254
[1] 7
[1] -0.4161468

Example 2:

Python3 1==

# R program to evaluate an expression

# Creating a vector
x <- c(1, 2, 3)

# Creating a matrix
mat <- matrix(c(2, 7, 5, 7), 2)

# Calling eval() function
eval(x * 2)
eval(det(mat))

Output:

[1] 2 4 6
[1] -21

Repeatedly Evaluate an Expression in R Programming - replicate() Function

N

nidhi_biet

Improve

Article Tags :

Similar Reads

Evaluate and Quote an Expression in R Programming - bquote() Function

bquote() function in R Language is used to quote the arguments passed to it, except the values which are wrapped in '.()'. It evaluates the wrapped values and quotes the result. Syntax: bquote(expr) Parameters: expr: language object Example 1: Python3 1== # R program to quote an expression # Assigni

Create an Expression in R Programming - expression() Function

expression() function in R Language is used to create an expression from the values passed as argument. It creates an object of the expression class. Syntax: expression(character) Parameters: character: Expression, like calls, symbols, constants Example 1: Python3 1== # R program to create an expres

Evaluating an Expression in R Programming - with() and within() Function

with() function in R programming evaluates the expression in an environment constructed locally by the data and does not create a copy of the data. Syntax: with(data, expr) Parameters: data represents dataset to be used expr represents formula or expression to be evaluated Example 1: Python3 # Creat

Repeatedly Evaluate an Expression in R Programming - replicate() Function

replicate() function in R Language is used to repeatedly evaluate a function or expression. It is member of apply family in R base package. In this article, we'll learn syntax and implementation of replicate() function with the help of examples. Syntax: replicate(n, expr, simplify) Parameters: n: re

Compute Derivative of an Expression in R Programming - deriv() and D() Function

In R programming, derivative of a function can be computed using deriv() and D() function. It is used to compute derivatives of simple expressions. Syntax: deriv(expr, name) D(expr, name) Parameters: expr: represents an expression or a formula with no LHS name: represents character vector to which d

Convert an Expression to a String in R Programming - deparse() Function

deparse() function in R Language is used to convert an object of expression class to an object of character class. Syntax: deparse(expr) Parameters: expr: Object of expression class Example 1: Python3 1== # R program to convert # expression to character # Creating an object of expression class x

Convert a String to an Expression in R Programming - parse() Function

parse() function in R Language is used to convert an object of character class to an object of expression class. Syntax: parse(text = character) Parameters: character: Object of character class Example 1: Python3 1== # R program to convert # character to expression # Creating an object of character

Calculate exponential of a number in R Programming - exp() Function

exp() function in R Language is used to calculate the power of e i.e. e^y or we can say exponential of y. The value of e is approximately equal to 2.71828â€¦.. Syntax: exp(y) Parameters: y: It is any valid R number either positive or negative. Returns: Floating point number by calculating e^y. Example

Calculate cosine of a value in R Programming - cos() Function

cos() function in R Language is used to calculate the cosine value of the numeric value passed to it as argument. Syntax: cos(x) Parameter: x: Numeric value Example 1: Python3 1== # R code to calculate cosine of a value # Assigning values to variables x1 <- 90 x2 <- 30 # Using cos() Function c

Check if an Object is an Expression in R Programming - is.expression() Function

is.expression() function in R Language is used to check if the object passed to it as argument is of the expression class. Syntax: is.expression(object) Parameters: object: Object to be checked Example 1: Python3 1== # R program to check if # an object is an expression # Creating an object x <-