Editing operations

Histograms are output on the line printer by calling HISTDO or HPRINT, according to the following specifications:

• One-dimensional histograms
• Two-dimensional histograms
• Index and General Title
• What to Print (1-dimensional histogram)
• Graphic Choices (1-dimensional histogram)
• Scale Definition and Normalization
• Page Control
• Selective Editing
• Printing after System Error Recovery
• Changing Logical unit numbers for output and message files