论文部分内容阅读
对于混杂样本剖析,早在1894年,Pearson就用两正态分布混杂的模型,研究螃蟹前头部的宽度分布,提出求解参数的矩估计法和计算公式。由于算式太繁,计算工具落后,长期未能推广,直到本世纪五十年代以后,逐渐有人采用且提出了其他混杂分布模型和参数估计方法,并较多地应用于工业、农业、地质、生物以及社会科学。1963年,Hoffmann 将
For the analysis of mixed samples, as early as 1894, Pearson used a mixed model with two normal distributions to study the distribution of the width of the crab’s anterior head, and proposed a moment estimation method and a calculation formula for the parameters. Because the calculation formula is too complicated and the calculation tools are backward, they have not been popularized for a long time. Until the 1950s, some other hybrid distribution models and parameter estimation methods were gradually adopted and proposed, and they were widely used in industry, agriculture, geology, and biology. And social sciences. In 1963, Hoffmann will