| **-b**, **--bucket-size** *N* | |
| Set the histogram bucket size (default *1*). | |
| **-e**, **--entries** *N* | |
| Set the number of entries of the histogram (default 256). | |
| **--no-header** | |
| Do not print header. | |
| **--no-summary** | |
| Do not print summary. | |
| **--no-index** | |
| Do not print index. | |
| **--with-zeros** | |
| Print zero only entries. |