Convolution (in C++)

Performs 1D convolution of two vectors in C++ via FFT.

Usage

conv_cpp(a, b, shape = "full")

Arguments

a

The first numeric vector.

b

The second numeric vector.

shape

(optional) The shape of the output: "full", "same", or "valid". Default is "full," matching conv and the Armadillo default, which means that the output array is length(a) + length(b) - 1.

Value

A numeric vector containing the convolution result.