Assign your anova object a name, like
fm1 <- anova(lm(Efficiency~percentQ,data=dfr))
Then do
names(fm1)
and try
fm1$"Mean Sq"
Notice you were trying to find "Mean Sq" in dfr, your original data.frame.
-Erik Iverson
Felipe Carrillo wrote:
> Hi all:
> Can someone advice me on how to hold the residuals
> Mean sq value on a string
> so it can be used in other calculations.
> I was trying something like this:
> Msquare<-dfr$Mean sq but fails..Thanks
>
> dfr <- read.table(textConnection("percentQ
> Efficiency
> 1.565 0.0125
> 1.94 0.0213
> 0.876 0.003736
> 1.027 0.006
> 1.536 0.0148
> 1.536 0.0162
> 2.607 0.02
> 1.456 0.0157
> 2.16 0.0103
> 1.698 0.0196
> 1.64 0.0098684
> 1.814 0.0183
> 2.394 0.0107
> 2.469 0.0221
> 3.611 0.0197
> 3.466 0.0155
> 1.877 0.0283
> 2.893 0.0189
> 1.851 0.009772
> 2.834 0.0285
> 1.923 0.022
> 2.581 0.0159
> 2.361 0.0053591
> 2.43 0.0185
> 1.66 0.0151
> 2.285 0.0084034
> 2.285 0.0124
> 2.37 0.0122
> 2.392 0.0146
> 2.244 0.0175"), header=TRUE)
>
> anova(lm(Efficiency~percentQ,data=dfr))
> Analysis of Variance Table
>
> Response: Efficiency
> Df Sum Sq Mean Sq F value Pr(>F)
> percentQ 1 0.00014432 0.00014432 4.3774 0.04561 *
> Residuals 28 0.00092312 0.00003297
>
>
>
> Felipe D. Carrillo
> Fishery Biologist
> US Fish & Wildlife Service
> California, USA
>
>
>
>
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