pricet.m

来自「这是天津大学刘则毅老师编写的那本书中的源代码」· M 代码 · 共 9 行

load gas
prices = [ price1  price2 ]
[ h , pvalue, ci ] = ztest ( price1/100 , 1.15 , 0.04 )
[ h , pvalue, ci ] = ttest ( price2/100 , 1.15 )
[ h , sig , ci ] = ttest2 ( price1 , price2 )
[ a, b, aci, bci ] = normfit ( price1 )
s1 = var ( price1 );
s2 = var ( price2 );
f = s1 / s2