Description Usage Arguments Details Value Notes Examples

View source: R/dcf_functions.R

`matrix_tau`

returns a matrix of differences between two vectors.

1 | ```
matrix_tau(x, y)
``` |

`x` |
vector 1 |

`y` |
vector 2 (default to vector 1 if not specified) |

Given two vectors - `x`

(length `M`

) and `y`

(length `N`

) - as
input, return the `N*M`

matrix of differences `result[i,j] = x[i] - y[j]`

.

`N*M`

array of differences, `result[i,j] = x[i] - y[j]`

Note that in the special case that `x=y`

we have a square symmetric
matrix: `result[i,j] = result[j,i]`

. In the even more special case that
the two vectors are evenly spaced (`x[i] = y[i] = i * delta + const`

)
then we have a circulant matrix; the `j`

th column `result[,j]`

is
the `(j-1)`

th cyclic permutation of the first column. This matrix is
symmetric, Toeplitz and circulant.

1 2 | ```
result <- matrix_tau(c(1,2,3), c(2,3,4,5,6))
print(result)
``` |

svdataman/sour documentation built on April 6, 2018, 11:13 a.m.

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