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  • Fisher's Exact Test即 Fisher's確切檢驗(yàn)SAS結(jié)果怎么讀,

    Fisher's Exact Test即 Fisher's確切檢驗(yàn)SAS結(jié)果怎么讀,
    結(jié)果:
    Statistics for Table of r by c
    Statistic DF Value Prob
    ------------------------------------------------------
    Chi-Square 1 0.4381 0.5080
    Likelihood Ratio Chi-Square 1 0.4710 0.4925
    Continuity Adj.Chi-Square 1 0.1429 0.7054
    Mantel-Haenszel Chi-Square 1 0.4374 0.5084
    Phi Coefficient 0.0275
    Contingency Coefficient 0.0275
    Cramer's V 0.0275
    WARNING:25% of the cells have expected counts less
    than 5.Chi-Square may not be a valid test.
    Fisher's Exact Test
    ----------------------------------
    Cell (1,1) Frequency (F) 15
    Left-sided Pr = F 0.3696
    Table Probability (P) 0.1962
    Two-sided Pr
    能否再講一下理論頻數(shù),小于5.淺顯一點(diǎn),
    數(shù)學(xué)人氣:684 ℃時(shí)間:2020-07-09 14:40:00
    優(yōu)質(zhì)解答
    P是0.7764.
    那個(gè)warning意思是說有四分之一(25%)的格子理論數(shù)小于5.這是做一般卡方檢驗(yàn)和Fisher's Exact Test的檢驗(yàn)條件,不滿足就要用Fisher's Exact Test.Two-sided是雙側(cè)P值,一般都是這個(gè).除非你的專業(yè)要求不同,會(huì)使用單側(cè)概率.
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