一种实用的多功能的函数拟合程序

研制了函数拟合程序.本程序主要特点在于可键盘或联机输入实验数据.利用计算机图示功能,手动、或自动拟合,以寻求最佳。本系统能打印出拟合后各参数的最佳值。并能在数字绘图仪上分别画出实验数据和理论曲线或光谱分解后的各分立子谱带。

A MULTI-PURPOSE PROGRAMME FOR FUNCTION FITTING

We often need to analyse a series of experimental data. A method frequently used is to fit the experimental data with a theoretical formula by adjusting the values of parameters in this formula.We have developped a programme to find the best adjusted values of the parameters with which a minimum deviation between the experimental data and the calculated values should be given.This programme allows to input the data by using either keyboard or on-line. Various functions can be easily chosen in this programme for different purposes.A complex spectrum can be deconvoluted into several sub-bands by using this programme.There are two modes to-fit the experimental data:manually fitting mode and the automatically fitting mode. In the former,the user can choise the test values of the adjustable parameters throuwh the keytcard. The experimental data and calculated curves shall be shown on the CRT screen.Some additional features are designed in this program me, such as the print of the best adjusted values of parameters, the plot of the experimental data and calculated curves.Two examples are given in this paper in order to explain the usage of the programme.