地域データの少数近似値桁数に関する分析

概要

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This paper is concerned with the number of figures of the decimals in data sets, such as the National Census Data in Japan, which any decision-maker can have access to. First, we show that by use of the continued fraction method the rational number can be derived from the decimal, which is obtained by rounding the rational number if the figure of the decimal is at most two times that of the denominator of the irreducible fraction of the rational number. Therefore, we may use this decimal to approximate the rational number. Second, we demonstrate that the differences between the sizes of the decimals and that of the irreducible fractions ale insignificant using Japanese Census data.
1996-06-30