A note on sampling a tape-file

Author:

Jones T. G.1

Affiliation:

1. AFLC, Wright-Patterson Air Force Base, Dayton, OH

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 r 1 , r 2 , … , r n 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 r 1 th, r 2 th, … , r n th records.

Publisher

Association for Computing Machinery (ACM)

Subject

General Computer Science

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