Fast Fourier Transform — fft • Rmlx

Extends stats::fft() to work with mlx objects while delegating to the standard R implementation for other inputs.

Usage

fft(z, inverse = FALSE, ...)

# Default S3 method
fft(z, inverse = FALSE, ...)

# S3 method for class 'mlx'
fft(z, inverse = FALSE, axis, ...)

Arguments

z: Input to transform. May be a numeric, complex, or mlx object.
inverse: Logical flag; if TRUE compute the inverse transform.
...: Passed through to the default method.
axis: Single axis (1-indexed). Supply a positive integer between 1 and the array rank. Use NULL when the helper interprets it as "all axes" (see individual docs).

Value

For mlx inputs, an mlx object containing complex frequency coefficients; otherwise the base R result.

See also

stats::fft(), mlx_fft(), mlx_fft2(), mlx_fftn(), mlx.core.fft.fft

Examples

z <- as_mlx(c(1, 2, 3, 4))
fft(z)
#> mlx array [4]
#>   dtype: complex64
#>   device: gpu
#>   values:
#> [1] 10+0i -2+2i -2+0i -2-2i
fft(z, inverse = TRUE)
#> mlx array [4]
#>   dtype: complex64
#>   device: gpu
#>   values:
#> [1] 10+0i -2-2i -2+0i -2+2i