摘要
应用拉格朗日插值法拟合鱼类体长与体重之间的函数关系 ,使用计算机VB语言进行编写程序 ,与常用的线性回归法、Ricker法进行比较 ,得出体长与体重的关系式为Pn(x) =∑nk=0yklk(x)=∑nk=0(∏nj=0j≠kx-xjxk-xj)yk 。
A functional relationship between the body-length and body-weight was formulated by using the Lagrangian Interpolation Method, and programed by VB. Comparing the Lagrangian interpolation method with the linear regression method and Ricker method, the formula of length and weight is P_n(x)=∑nk=0y_kl_k(x)=∑nk=0(∏nj=0j≠kx-x_jx_k-x_j)y_k.
出处
《湛江海洋大学学报》
CAS
2003年第6期35-38,共4页
Journal of Zhanjiang Ocean University
关键词
拉格朗日插值法
渔业资源评估
体长
体重
Lagrangian Interpolation Method
fishery stock assessment
body-length
body-weight
