modify_by: Modify an Object In Place

In refer: Create Object References

Description

Update the value pointed to by a ref object. If the new value is a function, the old values will be applied to the function and overwritten.

Usage

modify_by(x, value, ...)

Arguments

x	object of class "ref"
value	new value or function applied to the object at the referenced location
...	additional arguments passed to the function

Value

object of class "ref"

Examples

x <- 1:10
ref_to_x <- ref(x)

# Apply the square root function
modify_by(ref_to_x, sqrt)
print(x)

# Overwrite the original values
modify_by(ref_to_x, "hello world!")
print(x)

refer documentation built on Nov. 8, 2021, 5:08 p.m.