Get the Minimum element of an Object in R Programming - min() Function

Search the Interval for Minimum and Maximum of the Function in R Programming - optimize() Function

Last Updated : 08 Sep, 2021

optimize() or optimise() function in R Language is used to search the interval from lower to upper for a minimum or maximum of the function f with respect to its first argument.

Syntax: optimize(f, interval, maximum)
Parameters:
f: the function to be optimized. The function is either minimized or maximized over its first argument depending on the value of maximum.
interval: a vector containing the end-points of the interval to be searched for the minimum.
maximum: the logical value says to maximize or minimize. Its default value is minimize.

Example 1:

Python3

# R program to illustrate
# optimize function

# Specifying a function
f <- function(x) {5 * x ^ 2 - 12 * x + 17}

# Calling the optimize() function
# over the interval of -5 to 5, to
# minimize the value
optimize(f, interval = c(-5, 5))

Output:

$minimum
[1] 1.2

$objective
[1] 9.8

Example 2:

Python3

# R program to illustrate
# optimize function

# Specifying a function
f <- function(x) {5 * x ^ 2 - 12 * x + 17}

# Calling the optimize() function
# over the interval of -5 to 5, to
# maximize the value
optimize(f, interval = c(-5, 5), maximum = T)

Output:

$maximum
[1] -4.999944

$objective
[1] 201.9965

Get the Minimum element of an Object in R Programming - min() Function

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