• 【SAS NOTES】proc univariate检查单变量分布


    1 proc univariate data=mysas.mmstwo;
    2     var wangnei;
    3 run;

    结果

    The SAS System 17:32 Saturday, February 14, 2009 1

    The UNIVARIATE Procedure
    Variable: wangnei

    Moments

    N 48 Sum Weights 48
    Mean 8135197.19 Sum Observations 390489465
    Std Deviation 1872000.61 Variance 3.50439E12
    Skewness 1.15120577 Kurtosis 0.71878439
    Uncorrected SS 3.34141E15 Corrected SS 1.64706E14
    Coeff Variation 23.0111277 Std Error Mean 270200.014


    Basic Statistical Measures

    Location Variability

    Mean 8135197 Std Deviation 1872001
    Median 7713962 Variance 3.50439E12
    Mode . Range 7438151
    Interquartile Range 2020383


    Tests for Location: Mu0=0

    Test -Statistic- -----p Value------

    Student's t t 30.10806 Pr > |t| <.0001
    Sign M 24 Pr >= |M| <.0001
    Signed Rank S 588 Pr >= |S| <.0001


    Quantiles (Definition 5)

    Quantile Estimate

    100% Max 13050028
    99% 13050028
    95% 12280391
    90% 11480186
    75% Q3 8849826
    50% Median 7713962
    25% Q1 6829443
    10% 6234089
    5% 6185196
    1% 5611877
    0% Min 5611877


    Extreme Observations

    ------Lowest----- ------Highest-----

    Value Obs Value Obs

    5611877 11 11480186 40
    5728596 9 11605647 41
    6185196 13 12280391 34
    6186945 16 12970193 37
    6234089 12 13050028 46

    skewness 偏度。

    kurtosis 峰度

    正态分布的skewness and kurtosis is 0

    2、可以为该变量分布创建图形,并标注不同的分布标准

     1 proc univariate data=mysas.mmstwo;
     2     var wangnei;
     3 run;
     4 proc univariate data=mysas.mmstwo;
     5     var wangnei;
     6     probplot wangnei;
     7 run;
     8 proc univariate data=mysas.mmstwo;
     9     var wangnei;
    10     histogram wangnei/normal;
    11 run;

    可创建的图形有cdfplot histogram ppplot probplot qqplpt

    对比的标准分布有beta exponential gamma lognormal normal weibull

     指定图像输出目录:

    1 ods graphics on;
    2 ods listing gpath='C:\Documents and Settings\My Documents\My SAS Files';
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  • 原文地址:https://www.cnblogs.com/colipso/p/2911940.html
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