Dear all

hi
may be my question is very basically:


I want to compare between zooplankton density in 36 station.

In base of shapiro.test and normality of data, i choose anova but when
apply TukeyHSD i take mis message.

any person help me what is meaning??




































































































































































> shapiro.test(f)

        Shapiro-Wilk normality test

data:  f
W = 0.9081, p-value = 0.1084

> model1<-aov(zoo~STATION)
> summary(model1)
                   Df     Sum Sq           Mean Sq        F      value
Pr(>F)
STATION       1     1.2055e+09     1205487359  0.3803 0.5384
Residuals   157 4.9771e+11 3170152766

> TukeyHSD(model1)
Error in TukeyHSD.aov(model1) : no factors in the fitted model
In addition: Warning message:
In replications(paste("~", xx), data = mf) : non-factors ignored: STATION
>

-- 
Mahnaz Rabbaniha
marine ecology PhD
Iranian Fisheries Research Organization (IFRO)
P.O.Box: 14155-6116 , P.Code: 1411816618*
Tehran, IRAN
Phone:   +98 21 44580953
Fax:       +98 21 44580583
Mobile:  +98 912 5790377

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