Subset selects rows at index with size
(at, size int)
| 2 | |
| 3 | // Subset selects rows at index with size |
| 4 | func (t *DataTable) Subset(at, size int) *DataTable { |
| 5 | cpy := t.EmptyCopy() |
| 6 | |
| 7 | for i, col := range t.cols { |
| 8 | cpy.cols[i].serie = col.serie.Subset(at, size) |
| 9 | } |
| 10 | |
| 11 | if len(cpy.cols) > 0 { |
| 12 | cpy.nrows = cpy.cols[0].serie.Len() |
| 13 | |
| 14 | } |
| 15 | |
| 16 | return cpy |
| 17 | } |
| 18 | |
| 19 | // Head selects {size} first rows |
| 20 | func (t *DataTable) Head(size int) *DataTable { |