A note on sampling a tape-file

  • Authors:
  • T. G. Jones

  • Affiliations:
  • AFLC, Wright-Patterson Air Force Base, Dayton, OH

  • Venue:
  • Communications of the ACM
  • Year:
  • 1962

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Abstract

The problem of selecting a random sample of precisely n records from a tape film containing N records sometimes arises in data processing applications. If a means of obtaining a random sample of n integers r1, r2, … ,rn selected from the N integers 1, 2, … , N is available, the problem is theoretically simple. All that need be done is to then select the r1th, r2th, … , rnth records.