Hello to all the list members. I would like to perform a Quade test with
more than one covariate. I know the command quade.test and I have seen the
example below:
## Conover (1999, p. 375f):
## Numbers of five brands of a new hand lotion sold in seven stores
## during one week.
y <- matrix(c( 5, 4, 7, 10, 12,
1, 3, 1, 0, 2,
16, 12, 22, 22, 35,
5, 4, 3, 5, 4,
10, 9, 7, 13, 10,
19, 18, 28, 37, 58,
10, 7, 6, 8, 7),
nrow = 7, byrow = TRUE,
dimnames list(Store = as.character(1:7),
Brand = LETTERS[1:5]))
y
quade.test(y)
My question is as follows: how could I introduce more than one covariate? In
this example the covariate is the Store variable. But what if I also have
another covariate i.e.: the the number of inhabitants of the town in which
each store is located.
Thanks in advanced for your help!
Fernando