Hi R People:
There are 2 data sets of the iris data: one is iris3, which is a 3-d array, and the other is iris, which
is a data frame with 150 rows and 6 variables.
Getting means is straightforward from the 3-day iris3 set:
apply(iris3,c(2,3),mean)
Setosa Versicolor Virginica Sepal L. 5.006 5.936 6.588 Sepal W. 3.428 2.770 2.974 Petal L. 1.462 4.260 5.552 Petal W. 0.246 1.326 2.026
Is there is similar way to obtain those values from the iris data frame, please?
thanks in advance R Version 1.9.1 Windows.
Sincerely, Laura Holt mailto: [EMAIL PROTECTED]
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