# Graphical Rational Patterns: A New Approach to Graphical Presentation of Statistics

## Roberto Bachi

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In this book an attempt is made to evaluate the adequacy of common diagrammatical, cartographical and other graphical methods in order to represent, in a scientific manner, the various types of statistical data, of which graphical presentation may be sought.

In regard to many important types of data—such as contingency tables, correlation tables, other double-entry tables and various geographical-statistical distributions—common graphical methods seem to be inadequate. A new device—the Graphical Rational Patterns (GRP)—which appears to be of considerable help in graphical presentation of such data, is therefore, introduced. Single GRP enable the representation of any integer /?= 10 ? + a by a pattern formed by u unitary marks of area a (which indicate the units) and by t marks of area 10a (which indicate the tens). As these patterns require very little space, and are enclosed within small square frames, they allow extremely simple representation of any double-entry table. Such single patterns can be used too, to indicate on a geographical map, that a varue n is to be attached to a given area or a given line (isoline, line of traffic-flow, etc.). By the means of GRP, it is possible to solve rationally many problems connected with the construction of a geographical statistical map.

The use of GRP also allows rearrangement at will of the various elements of the graph without changing the entire graph: for instance, individual GRP, or columns or lines of GRP can be removed, and their order changed. The book illustrates possibilities of making alternative comparisons of data; of examining alternative hypotheses, or relationships between data represented; of discovering "lags" and "leads"; and following-up cohorts in the course of time, etc. GRP graphs may be prepared quickly by anyone, by the use of preprinted patterns prepared on adhesive paper.

Examples of applications have been taken from different fields: official, national and international statistics, demography, economics, sociology, geography, anthropology, meteorology, business administration, teaching of statistical methods, etc.

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Roberto Bachi was born in Rome in 1909. He was Professor of Statistics in various Italian Universities, but following the enforcement of antisemitic legislation in Italy, he immigrated to Palestine in 1938. He organized the Department of Statistics at the Hebrew University of Jerusalem, where he is still Professor of Statistics and Demography and he served as Dean of the Faculty of Social Sciences between 1953-54, and as Pro-Rector of the University in 1959-60. Since the establishment of the State of Israel, he has served as Government Statistician and Scientific Director of the Central Bureau of Statistics. He is a Member of the International Institute of Statistics, a Fellow of the American Statistical Society and of the National Academy of Sciences of Israel, and of several other learned societies. He is the author of many books and articles in several languages on various topics of statistical methodology, demography, health statistics, social statistics, geo-statistics, etc.

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## 1.Graphical Rational Patterns: A New Approach to Graphical Presentation of Statistics (Hardback)

Editore: Taylor Francis Inc, United Kingdom (1968)
ISBN 10: 0878552014 ISBN 13: 9780878552016
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Descrizione libro Taylor Francis Inc, United Kingdom, 1968. Hardback. Condizione libro: New. Language: English . This book usually ship within 10-15 business days and we will endeavor to dispatch orders quicker than this where possible. Brand New Book. In this book an attempt is made to evaluate the adequacy of common diagrammatical, cartographical and other graphical methods in order to represent, in a scientific manner, the various types of statistical data, of which graphical presentation may be sought. In regard to many important types of data--such as contingency tables, correlation tables, other double-entry tables and various geographical-statistical distributions--common graphical methods seem to be inadequate. A new device--the Graphical Rational Patterns (GRP)--which appears to be of considerable help in graphical presentation of such data, is therefore, introduced. Single GRP enable the representation of any integer /?= 10 ? + a by a pattern formed by u unitary marks of area a (which indicate the units) and by t marks of area 10a (which indicate the tens). As these patterns require very little space, and are enclosed within small square frames, they allow extremely simple representation of any double-entry table. Such single patterns can be used too, to indicate on a geographical map, that a varue n is to be attached to a given area or a given line (isoline, line of traffic-flow, etc.). By the means of GRP, it is possible to solve rationally many problems connected with the construction of a geographical statistical map. The use of GRP also allows rearrangement at will of the various elements of the graph without changing the entire graph: for instance, individual GRP, or columns or lines of GRP can be removed, and their order changed. The book illustrates possibilities of making alternative comparisons of data; of examining alternative hypotheses, or relationships between data represented; of discovering -lags- and -leads-; and following-up cohorts in the course of time, etc. GRP graphs may be prepared quickly by anyone, by the use of preprinted patterns prepared on adhesive paper. Examples of applications have been taken from different fields: official, national and international statistics, demography, economics, sociology, geography, anthropology, meteorology, business administration, teaching of statistical methods, etc. Codice libro della libreria BTE9780878552016

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## 2.Graphical Rational Patterns: A New Approach to Graphical Presentation of Statistics (Hardcover)

ISBN 10: 0878552014 ISBN 13: 9780878552016
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Descrizione libro 1968. Hardcover. Condizione libro: New. Hardcover. In this book an attempt is made to evaluate the adequacy of common diagrammatical, cartographical and other graphical methods in order to represent, in a scientific manner, th.Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability. 264 pages. Codice libro della libreria 9780878552016

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## 3.Graphical Rational Patterns: A New Approach to Graphical Presentation of Statistics

Editore: Routledge (1968)
ISBN 10: 0878552014 ISBN 13: 9780878552016
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Descrizione libro Routledge, 1968. Hardcover. Condizione libro: New. book. Codice libro della libreria M0878552014

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