Description Usage Arguments Details Value Author(s) See Also Examples

`fourier_2d()`

and `polynomial_2d()`

creates a `list`

of basis
functions to be used as the fixed effect in `fit_ghm`

.

1 2 3 | ```
fourier_2d(max_freqs, lattice_dim)
polynomial_2d(poly_deg, lattice_dim)
``` |

`max_freqs` |
A length 2 numeric vector with maximum frequencies considered (x-axis and y-axis direction, respectively). |

`lattice_dim` |
A length 2 numeric vector with lattice dimensions (N,M) to be used. |

`poly_deg` |
A length 2 numeric vector with degrees of the bivariate polynomial to be considered. |

`fourier_2d()`

is for 2-dimensional Fourier transform.

A `list`

of functions.

Victor Freguglia

A paper with detailed description of the package can be found at https://arxiv.org/abs/2006.00383

1 2 | ```
fourier_2d(c(10,10), dim(Z_potts))
polynomial_2d(c(3,3), dim(Z_potts))
``` |

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