istat Command

The istat command produces a graphic representation of item-ID distribution within a file and suggests a new modulo. The istat command is equivalent to the hash-test command.

Syntax

istat file.reference {item.list} {modifiers} {(options)}

Parameter(s)

options

r

Provides additional information about indirect (pointer) items, that are otherwise not accurately reflected by the output.

s

Suppresses display of histogram; displays summary statistics only.

Example(s)

istat entity (s

file = entity modulo = 11 16:08:40 14 Feb 2004

frames bytes items

 

11

 

 

 

 

 

Hash-Test/Istat Statistics

total item count

=

8

byte count =

2226

avg. bytes/item

=

270.2

avg. items/group =

3

std. deviation

=

1.0

avg. bytes/group =

202.3

suggested modulo

=

3.0

 

 

See Also

AQL Command Categories

f-resize Command

File Reference

File-of-Files File (VME)

hash-test Command

item Command

Item List

Modifiers

modulo

nframe-index Command

Options

Pointer Item

resize Command

Selection Criteria

sum Command