It is a 'List of 1', so you want tmp[[1]] which you can access as a
data frame. As the help file says
For a fit with a single stratum the result will be a list of
ANOVA tables, one for each response (even if there is only one
response): the tables are of class 'anova' inheriting from class
'data.frame'. They have columns 'Df', 'Sum Sq', 'Mean
Sq', as well as 'F value' and 'Pr(F)' if there are non-zero
residual degrees of freedom. There is a row for each term in the
model, plus one for 'Residuals' if there are any.
and you have a single response so select the only element of the
list.
On Mon, 19 Oct 2009, Liviu Andronic wrote:
Dear all
How do I access individual elements of a summary.aov object?
data(iris)
AnovaModel.1 - aov(Sepal.Length ~ Species, data=iris)
tmp - summary(AnovaModel.1)
tmp
Df Sum Sq Mean Sq F value Pr(F)
Species 2 63.231.6 119 2e-16 ***
Residuals 147 39.0 0.3
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
str(tmp)
List of 1
$ :Classes 'anova' and 'data.frame':2 obs. of 5 variables:
..$ Df : num [1:2] 2 147
..$ Sum Sq : num [1:2] 63.2 39
..$ Mean Sq: num [1:2] 31.606 0.265
..$ F value: num [1:2] 119 NA
..$ Pr(F) : num [1:2] 1.67e-31 NA
- attr(*, class)= chr [1:2] summary.aov listof
tmp$1
Error: unexpected numeric constant in tmp$1
tmp$1
NULL
tmp$
NULL
Thank you
Liviu
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