In R, a hash can be created using the hash package. Here is an example code to create a hash with a few key-value pairs:
`` r
# Install and load the hash package
install.packages("hash")
library(hash)
# Create a hash and add key-value pairs
my_hash <- hash()
my_hash[["name"]] <- "John"
my_hash[["age"]] <- 30
my_hash[["gender"]] <- "Male"
# Print the hash
my_hash
Output:
r##
## name : John
## age : 30
## gender : Male
Another example of creating a hash using named arguments is shown below:
r# Create a hash using named arguments and add key-value pairs
my_hash <- hash(name = "John", age = 30, gender = "Male")
# Print the hash
my_hash
Output:
r##
## name : John
## age : 30
## gender : Male
r[[
Note that in these examples, we used theoperator to add and retrieve values from the hash. We can also use the$operator to access the values of the hash. For example:
# Access the value of the name key using $
operator
my_hash$name
Output:
r
## [1] "John"
`
Overall, the
hash` package provides a convenient and flexible way of working with hashes in R.