Description Usage Arguments Value Examples

Creates a *n* by *n* lower triangular matrix with all non-zero entries equal to one.

1 | ```
Jn(n = 2)
``` |

`n` |
number of rows and columns in the J matrix. |

an *n* by *n* lower triangular matrix with all non-zero entries equal to one. This is an auxiliary function.

1 2 | ```
J = Jn(n = 3)
J
``` |

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