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回归分析是研究相关关系的一种数学工具,回归分析方法就是通过变量之间的函数关系找出经验公式的方法。这种方法在生产和科研中应用较多,在技术经济工作中应用,也能够取得好的效果。本刊上期刊载的《对钢筋混凝土方构设计进行技术经济分析的探讨》一文,附有曲线七条。这些曲线是根据十五个实际工程设计的原始数据经过简单取舍后进行绘制的,分别表示方沟断面积与造价、混凝土用量及钢筋用量指标之间的关系。由于数据之间的关系不很规律,手工绘
Regression analysis is a mathematical tool to study the correlation. Regression analysis method is to find the empirical formula through the functional relationship between variables. This method is widely used in production and scientific research, and applied well in technical and economic work, and can also achieve good results. The article published in the “on the square steel structure design of technical and economic analysis of the” one article, with seven curves. These curves are based on the original data of fifteen actual engineering design after a simple choice after drawing, respectively, the square trench area and the cost, the amount of concrete and the amount of indicators of the relationship between the amount of steel. Because the relationship between the data is not very regular, hand-painted