Description Usage Arguments Value Examples

Uses the package `fda`

to find a transformation matrix where each
column is a basis function from the B-spline basis, evaluated at specified
points along the rows of the matrix.

1 | ```
BSplineBasis(tlist, N, train = NULL)
``` |

`tlist` |
an array of the specific points where the basis functions are evaluated at. |

`N` |
number of basis functions in the matrix. |

`train` |
indices corresponding to which rows of the matrix to keep. Default is to keep all rows. |

A P x N discrete Fourier transformation matrix where P is equal to the
length of `train`

and N is the number of basis. If `train`

is `NULL`

then P equals the length of `tlist`

.

1 2 3 4 5 6 7 8 | ```
# Points to evaluate the basis functions at
points <- c(0,1,2,3,4)
# Find first 8 B-spline basis functions evaluted at "points"
b <- BSplineBasis(points, 8)
# Find first 8 B-spline basis functions evaluated at "points" but only keep
# last two rows
b <- BSplineBasis(points, 8, train = c(4,5))
``` |

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