多元统计分析SPSS操作步骤
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多元统计分析SPSS操作步骤
方差分析:
Analyze—general linear model—univariate
1、结果选入dependent variable,自变量选入fixed factors
2、Options(display:descriptive statistics)
主成分分析:
Analyze→Dataredution---factor
1、自变量:放入Variables
2、Descriprives: (statistics默认)(correlation matrix:coefficients,KMO,)
3、Extiaction :( method默认)(analyze:correlation)(display:全选)(extract:默认)
4、Rotation:(method:none) (display:loading plot)
5、Scores:(save as variables)(Display factor)
因子分析
Analyze→Dataredution---factor
6、自变量:放入Variables
7、Descriprives: (statistics默认)(correlation matrix:coefficients,KMO,anti-image)
8、Extiaction :( method默认)(analyze:correlation)(display:全选)(extract:默认)
9、Rotation:(method:quartimax) (display:rotated solution)
10、Scores:(save as variables)(Display factor)
11、Options:(默认)
Logistic回归
加权处理:data-weight cases-频数放入FV
Analyze—regression—binary logistic (二分类)
1、因变量(y)放入dependent;自变量放入covariates;metord:forward(一般forward wald)
2、Save:(predictde values:probabilities)
3、Options:(statistics and plots: Hosmer;CI for exp(B))
生存分析之life tables
加权
Analyze—survival—life table(未完成)
1、生存时间选入time,Display time intervals:0 through(?)by(?),结局进入Status框,Define
失效事件,变量进入Factor框,点击Define Range...钮,定义分组的范围,在Mininum 框中输入小的,在Maxinum框中输入大的
2、 Options.(Plot:Survival)(Compare Levels of First Factor:Overall)
生存分析之kaplan-meire
Analyze—survival—kaplan-meire
1、生存时间选入time,结局入status,define 失效事件,
2、Compare factor:(log rank)
3、Save:(survival,standard)
4、Options:(statistics:survival table;mean and median survival),(plot:survival)
生存分析之COX
生存时间处理transform—compute
Analyze—survival—cox
1、生存时间入time,结局入status,define 失效事件,自变量选入covariaes,strate:对子数
2、Plots(plot type:survival)
3、Save(survival:function,standard error)
4、Options(model statistics:CI for exp(B))