一眼瞬间 发表于 2010-3-22 02:34
有两个变量，一共有200个obversation，
想test下这两个变量的值是否相等。

用什么方法呢？

不过这个好像不仅仅是sas code的问题了，还涉及到统计量的选择.

Wilcoxon test and t test? How do we do it in these two ways?

一眼瞬间 发表于 2010-3-22 03:36
2# bobguy

Bobguy, 你又给我补课了：）

There're two ways to calculate the value of one variable. I want to know whether these two ways can genereate similar results.
Should I test all?

Mean, median, distribution, cv, variance?

How can I test those statistics?

Isscaliu 发表于 2010-3-22 11:11

一眼瞬间 发表于 2010-3-22 03:36
2# bobguy

Bobguy, 你又给我补课了：）

There're two ways to calculate the value of one variable. I want to know whether these two ways can genereate similar results.
Should I test all?

Mean, median, distribution, cv, variance?

How can I test those statistics?

could you clearly define your situation? the questions you have asked is very ambiguous.

first you need to decide what your inference is;
then you need to select what test(s) and what statistic(s) that is needed to conduct your inference.

for example, if you wanna test on the location parameters of two population, you can use mean or median. then t-test or wilcoxon should be used.