摘要
分析了直线拟合中截距是否为零的两种不同条件与解法 ,讨论了两种相关系数表达式之间的关系 ,给出了截距为零时斜率标准差与相关系数的近似计算式 .
Two different conditions and solutions of whether the intercept is zero or not in linear fitting are analyzed,the relationship between two correlation coefficient equations is discussed,the approximate calculative equation of slope standard error correlation coefficient when the intercept is zero is presented.
出处
《大学物理》
北大核心
2002年第5期30-32,共3页
College Physics
