NDLI: Statistics loves APL

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APL2-a RISC business

Parametric Fourier image characterization toolkit

An interactive simulation modeling system: DYNAGRAPH for multi-period planning on an APL spreadsheet

Symmetries of the firing squad sychronization problem revealed in a nested array

Some APL2 programming examples using nested arrays

An introduction to function rank

An APL2 description of the IBM 3090 vector facility

APL object manager

I-APL: A portable ISO APL in under 25K

APL in a development environment

Application-sol interaction: an APL2 approach

High powers of matrices

Statistics loves APL

APL: The language of science and management

Computer vision and its application to APL

APL2 implementation of numerical asset pricing models

Efficient evaluation of the area under the normal curve

Flexi-View: a multi-dimensional data modeling system

Indexing and merging in APL

From a functional point of view: a framework for extensions to APL

Parts of arrays-an introduction

APL and finite elements for solving convection-diffusion problems, with examples from gas bearing design

The use of APL.68000 access to the Macintosh quickdraw system for the productio n of shadows cast by buildings

Comparative analysis of LISP and APL2

An experimental facility for cooperative processing in APL

APL and SAS in co-operation

APL applied in music theory

APL graphics for learning mathematics

The theory of function arrays

Incremental systems development-a case study

Making APL cheap-Saving time and money in APL

Life: Nasty, brutish, and short

EXAPL (Expert System Based on APL) and its application to chemical analysis

Achievement certificates from graphics environment

Iterative scaling of marks using APL-a case study

Network shared variable processor

The compact display of arbitrary nested arrays

Scope and access classes in APL

Casual management of large computer systems with APL programs

Windows and pop-up menus in application design

APL graphics and the associative machine

Issues in data base management for APL2

Innovation of decision support system-matplan based on structure matrix supported by APL

APL object transfer in a multi-APL site

APL2 and the CMS system: Exploiting the APL2/REXX connection

Arrays of objects in rationalized APL

Statistics loves APL

Content Provider	ACM Digital Library
Author	Douglas, J. B.
Abstract	To call this paper 'STATISTICIANS LOVE APL' would be self-deluding. To call it 'SOME STATISTICIANS LOVE APL' though vague would be accurate. However a balance then might be desirable by appending '… AND SOME STATISTICIANS HATE APL'. But that title would be both too long and almost vacuous. Nevertheless, this brief historical record at a personal level of the prominent place APL has played, first in the research, second in the teaching, and third in the consultative, activities of the Department of Statistics at the University of New South Wales since 1970 will help to explain and justify such titles.The affinity between Statistics and APL derives primarily from the correspondence between the mathematical structure of much statistical analysis and the structure of APL. Successful exploitation of this correspondence depends on how Statistics is learnt, taught and used. For example, at the teaching level an entirely theoretical course in Statistics which never does anything with numbers will only rarely make contact with computing. Similarly, a 'methods' or 'cookbook' course involving computing will depend on packages which if they use APL will typically do so invisibly. How the correspondence between mathematical structure and APL has been utilized at the University of New South Wales is sketched below.Whilst I was on leave in 1969 from the University of New South Wales at Penn State University doing some heavy statistical computing, the Computing Center called me to say that IBM had given Penn State access to an APL interpreter for a couple of months. I had not heard of APL, but was told it was a splendid system for array manipulation, and that I could have a demonstration, and then some time for personal playing. It was enormously impressive to see how easily arrays could be processed, but because I saw no likelihood that on returning to N.S.W. I would still have access to APL I did not follow up the offer to use it. But before my return to Australia IBM (Aust.) had established the Systems Development Institute in Canberra, and was providing contracts for use of its facilities - amongst these was APL\360; and the School of Mechanical Engineering of the University of N.S.W. (via G. de Vahl Davis) was carrying out a project using APL in engineering education through W.N. Holmes of IBM.
Starting Page	100
Ending Page	106
Page Count	7
File Format	PDF
ISBN	0897912535
DOI	10.1145/55626.55640
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1987-12-01
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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