my .cool file without DIs,how can i add this to my cool file

[Fmh2417]

Dear Professor Wang:
Your article on nar is wonderful!!!But there are still some problems bothering me.
I'm a noob at TADlib.my .cool file without DIs,how can i add this to my cool file?
/
└── resolutions
└── 10000
├── bins
│ ├── chrom (321184,) int32
│ ├── end (321184,) int32
│ ├── start (321184,) int32
│ └── weight (321184,) float64
├── chroms
│ ├── length (455,) int32
│ └── name (455,) |S23
├── indexes
│ ├── bin1_offset (321185,) int64
│ └── chrom_offset (456,) int64
└── pixels
├── bin1_id (195286378,) int32
├── bin2_id (195286378,) int32
└── count (195286378,) float64
Best Wish

[XiaoTaoWang]

Hi, thanks for your interest. After you have run hitad successfully, a DI track will be exported to a column named as "DIs" (by default) in your cool file. So the DI track is one of the output of hitad, and you don't need DIs to run hitad.