| Library: | xplore |
| See also: | order sort rank |
| Quantlet: | indexcat | |
| Description: | returns the indices of the elements of a vector which fall into specified category. |
| Usage: | ind = indexcat(y, value{, up}) | |
| Input: | ||
| y | n x 1 vector | |
| value | scalar which specifies the lower band for the category (or the category itself if the optional parameter up is not given) | |
| Output: | ||
| ind | m x 1 vector, indices of the elements falling into the specified category, it returns -1 if there are no such elements. | |
indexcat(5:18,8,10)
Contents of ind [1,] 4 [2,] 5 [3,] 6