Topic: histogram

Summary

A histogram displays a set of buckets which splits a variable's value into ranges, defines subsets of variables, or reflects a quantity's behavior over time. The buckets can be tallied over a whole sequence, a structure, or an environment. Once tallied they can be displayed as a bar graph. For instance an execution histogram could tally the value of the program counter at regular time intervals. Histograms over a sequence reduce the sequence to a set of summary values. (cbb 5/80)

Subtopic: in situ aggregation

Quote: DTrace's quantize() generates a power-of-two histogram, in situ; for example, frequency of write system calls by size by application [»cantB2_2006]

Subtopic: histogram

QuoteRef: polsPG_1972 ;;561 histogram function: declared with limits and pocket widths, then a logging function to inc a pocket

Quote: use bargraphs to show how well process variables are maintaining their setpoints [»instrumentcontrol]

Quote: Simscript has an 'accumulate' statement of automatically collecting statistics or a histogram [»simscrip_1971, OK]

QuoteRef: simscrip_1971 ;;222 Tally for time independent variables

Related Topics

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(10 items)