给排水管道工程中管材造价的确定

Determination of Cost of Pipe Material in Water Supply and Drainage Pipework

摘要: 本文通过研究给排水工程中管材造价与管径大小的关系，建立了一元线性回归模型与一元多项式回归模型，利用最小二乘法对模型的系数进行拟合，确定了管材造价与管径大小的公式，最后通过数值实验验证了算法的有效性。

Abstract: The relationship between cost of pipe material and pipe size in water supply and drainage pipework is studied in this paper. In order to determine the cost formula of pipe material, we established a liner regression and one-dimensional polynomial regression model and fitted the coefficient of model function by least squares. The effectiveness of the algorithm is verified by numerical experiments.