Re: [R] How to sort using a predefined criterion

2011-03-08 Thread Dennis Murphy
df <- read.table(textConnection(" category type values 1 treat_A AA 0.38200018 2 treat_A0.10068056 3 treat_A B0.59648427 4 treat_A AAA 0.89910581 5 treat_A BB 0.88460952 6 treat_A 0.95846431 7 treat_ABB

[R] How to sort using a predefined criterion

2011-03-08 Thread Vincy Pyne
Dear R helpers, Suppose I have following data.frame. df <- data.frame(category = c("treat_A", "treat_A", "treat_A", "treat_A", "treat_A", "treat_A", "treat_A", "treat_A", "treat_B", "treat_B", "treat_B", "treat_B", "treat_B", "treat_B", "treat_B", "treat_B"), type = c("AA", "", "B", "AAA",