Tests whether a 2 x n matrix represents a rooted tree in the
format accepted by the `oncomodel`

package.

1 | ```
is.tree(tree)
``` |

`tree` |
a 2 x n matrix. |

In the accepted format, the columns of the integer matrix represent the edges of the tree, with the entry in the first row being closer to the root. The leaves have to be the smallest integers of the matrix. If an edge has a smaller column index than a second one, it may not be on the path from the second edge to the root (the order of the columns has to be compatible with the partial order of the edges of the tree).

1 2 |

Questions? Problems? Suggestions? Tweet to @rdrrHQ or email at ian@mutexlabs.com.

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.