Figure 1. WIDTH Format
Indicates the range between minimum and maximum block lengths and the minimum and maximum record lengths in each group of the HISTOGRM output. The number specified for the WIDTH value must be a multiple of 4. (4, 8, 12, . . . See examples of block and record HISTOGRMs that follow.) Adjust this range based on the characteristics of the file (the lengths of the shortest and longest record) and the desired length of HISTOGRM.