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:
# R program to quote an expression # Assigning value to variable x <- 10 # Calling bquote() Function bquote(x == x) bquote(x == 10) bquote(x == .(x)) bquote(x == .(x * 2)) |
Output:
x == x x == 10 x == 10 x == 20
Example 2:
# R program to quote an expression # Assigning value to variable z <- 10 # Calling bquote() Function bquote(function(x, y = .(z)) x + y) # Plotting a graph with the default value plot(1:10, z+(1:10), main = bquote(z == .(z))) |
Output:
function(x, y = 10) x + y