means | R Documentation |
Calculates means for individual factors and two-way factor combinations. Any number of factors may be input and the indivdual factor means as well as all possible two-way means will be shown for each factor. Three-way, four-way, etc. means are not shown, even when more than 2 factors are given.
means(y, ..., dec = 3)
y |
Vector of responses whose means are shown. |
... |
Vectors of independent variables on which the responses' means are broken down. |
dec |
Number of decimal places to print. |
mplot, mean
# Create a data set with two factors (age and gender) race<-data.frame(c(1.02,.99,1.11,1.30,1.09,1.26,1.21,1.19,1.30,1.45,1.34,1.49), c('M','M','M','M','M','M','F','F','F','F','F','F'), c('under 50','under 50','under 50','over 50','over 50','over 50', 'under 50','under 50','under 50','over 50','over 50','over 50')) names(race)<-c("time","gender","age") # Show mean times broken by age, gender and age & gender means(race$time, race$age, race$gender)
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