nnhwp
将大鼠分为三组,经处理后于3天,5天,7天抽血,测CD4,CD8淋巴细胞,比较各组间及组内有无差别。准备用 SPSS行重复测量资料的多变量分析,不知数据如何输入及处理,那位高手指点下啊!
nnhwp
郁闷!!!没人理!!!
dolltree
我觉得用spss里面的repeated measure
1\先算三组平均值
2\数据输入方式:
group cd4-3 cd4-5 cd4-7 cd8-3 cd8-5 cd8-7
1 mean
2
3
3\ analyze=> gerenal liear model =>repeated measure
4\ within-subject factor name: cd ;number of level: 2 (cd4, cd8)
within-subject factor name: repeat; number of level : 3 (测量三次)
不知道对不对?
longoR
as for the design, yes.
as for the analysis, it depends on the how the data look like.
jiangshq
2楼的答案欠妥,不用算均数,数据格式正确,用原始数据计算的
要先定义重复因素,define factor定义为3将cd4-3 cd4-5 cd4-7选入group放入within-subject factor 就ok了
dolltree
nnhwp
谢谢楼上各位的答复!实验检测的CD4,CD8反映大鼠的免疫功能,就如身高,体重反映个体的健康状态一样,想用多变量数据分析,SPSS如何进行多元重复测量分析呢?
friend
我认为:是个两因素的重复,把各因素组合成六个变量,然后再在变量下输入测量值:
rat time1cd4 time1cd8 time2cd4 time2cd8 time3cd4 time3cd8
a
b
c
d
abcd代表你测量的数值,然后general line model=> repeated measures
whithin-subject in factor:time,3levels;group,2levels
within-subjects variable:上述六个变量全部选入
model:full factorial;include intercept in model
根据需要选入plot和options,然后ok。
不晓得说的是否正确,大家讨论一下。。。
nnhwp
谢谢friend兄弟的指教!另外一组数据是三因素的重复,按照你的方法进行分析,所得球形检验两个P值,一个大于0.05,一个小于0.05,该如何处理呢?
neige
SAS proc mixed or glm will do it
0.05 is not the magic number, provided your analysis result is right, you have to really think about what are CD4 and CD8, what do they mean, can you explain the difference.
This is what we(statisticians) need to improve