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APL Econometric Planning Language (EPLAN)

Authors:

K. SpielbergAuthors Info & Claims

APL '76: Proceedings of the eighth international conference on APL

Pages 359 - 387

https://doi.org/10.1145/800114.803699

Published: 22 September 1976 Publication History

Abstract

The APL Econometric Planning Language (EPLAN) is an IBM Installed User Program providing features to assist the construction and application of econometric models in an interactive environment.

Its design takes into account the nature of the econometric modeling process, which ideally requires a man-machine dialogue. Main objectives have been: User-oriented terminology (model language), functional capabilities, generality and fast response.

The elements of the model language observe a hierarchical structure. The atomic items are the economic variables, i.e. time series or cross-sectional data, and constants. Subsequent stages comprise operations on economic variables, equations and models. This logical structure is maintained by the use of suited APL data structures.

The functional capabilities include several techniques of single equation parameter estimation, the solution of non-linear models and routines for data transformation, documentation and file handling.

Generality is ensured by defining EPLAN open and transparent. The various programs are considered building-stones for the user's specific application. He can optionally mix EPLAN programs with programs of his own or from the APL Public Library.

Fast response is automatically given by the excellent time-sharing characteristics of the APL host system.

The paper describes the design of EPLAN, with emphasis also on its relation to APL, and applications in the fields of economics and business planning.

References

[1]

Berry, P.C., A.D. Falkoff and K.E. Iverson, Using the computer to Compute: a Direct but Neglected Approach to Teaching Mathematics, IBM Philadelphia Scientific Center Technical Report No. 320-2988, 1970.

[2]

Berry, P.C., G. Bartoli, C. Dell'Aquila and V. Spadavecchia, APL and Insight: The Use of Programs to Represent Concepts in Teaching, IBM Philadelphia Scientific Center Technical Report No. 320-3020, 1973.

[3]

Iverson, K.E., A Programming Language, Wiley, New York 1962.

Digital Library

[4]

Iverson, D.E., Algebra: An Algorithmic Treatment, Addison- Wesley, Menlo Park 1972.

[5]

Ortega, J. and W. Rheinboldt, Iterative Solution of Nonlinear Equations in Several Variables, Academic Press, New York 1970.

Digital Library

[6]

Schober, F., Eine interaktive oekonometrische Modellsprache in APL, in: Hansen, H.R. (Hsg.), Computergestuetzte Marketing-Planning, Verlag Moderne Industrie, Muenchen, 1974

[7]

Theil, H., Principles of Econometrics, Wiley, New York 1971.

[8]

Van der Giessen, A.A., Solving Non-linear Systems by Computers; a New Method, Statistica Neerlandia 24, p. 1-10, 1970.

[9]

APL Econometric Planning Language for System/370 OS/VSI or OS/VS2, Program Description/Operations Manual, SH20-1620, IBM

[10]

APL Econometric Planning Language for System/370 OS/VSI or OS/VS2, Systems Guide, LY20-2079, IBM

[11]

APL Shared Variables (APLSV) Variables (APLSV) User's Guide, SH20-1460, IBM

[12]

APL CMS User's Guide, SC20-1846, IBM (EPLAN can be used with CMS)

[13]

Koutsoyiannis, A., Theory of Econometrics, Macmillan, London 1973

[14]

Theil, H., Principles of Econometrics, J. Wiley, New York 1971

[15]

Van der Giessen, A.A., Solving Non-linear Systems by Computer: A New Method, in: Statistica Neerlandica 24 (1970) p.1-10

Cited By

Lewis S(1980)ApleconACM SIGAPL APL Quote Quad10.1145/586581.58658511:1(12-16)Online publication date: 1-Sep-1980
https://dl.acm.org/doi/10.1145/586581.586585
Heiberger RPenfield P(1979)Statistical software in APLProceedings of the international conference on APL: part 110.1145/800136.804451(134-137)Online publication date: 30-May-1979
https://dl.acm.org/doi/10.1145/800136.804451
Heiberger R(1979)Statistical software in APLACM SIGAPL APL Quote Quad10.1145/390009.8044519:4-P1(134-137)Online publication date: 30-May-1979
https://dl.acm.org/doi/10.1145/390009.804451

Index Terms

APL Econometric Planning Language (EPLAN)

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Published In

cover image ACM Conferences

APL '76: Proceedings of the eighth international conference on APL

September 1976

459 pages

ISBN:9781450374163

DOI:10.1145/800114

Editor:
G. Truman Hunter

Copyright © 1976 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

Sponsors

SIGAPL: ACM Special Interest Group on APL Programming Language
MSSNT: Ministry of State for Science and Technology

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 22 September 1976

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Cited By

Lewis S(1980)ApleconACM SIGAPL APL Quote Quad10.1145/586581.58658511:1(12-16)Online publication date: 1-Sep-1980
https://dl.acm.org/doi/10.1145/586581.586585
Heiberger RPenfield P(1979)Statistical software in APLProceedings of the international conference on APL: part 110.1145/800136.804451(134-137)Online publication date: 30-May-1979
https://dl.acm.org/doi/10.1145/800136.804451
Heiberger R(1979)Statistical software in APLACM SIGAPL APL Quote Quad10.1145/390009.8044519:4-P1(134-137)Online publication date: 30-May-1979
https://dl.acm.org/doi/10.1145/390009.804451

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