ALTREP macro
altrepSortStatus is a list containing all sortness status of an ALTREP object.
It can be used as the return value of isSorted function when defining
an ALTREP class. The sortness status can be unknown sortness,
known unsorted, ascending, descending, ascending with NA first,
descending with NA first.
Similarly, altrepNAStatus contains all possible NA status of an ALTREP object.
The current available status are unknow and no NA.
| 1 2 | 
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.