Order data frame by two columns in R -

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i'm trying reorder rows of data frame 2 factors. first factor i'm happy default ordering. second factor i'd impose own custom order rows. here's dummy data:

dat <- data.frame(apple=rep(letters[1:10], 3),                    orange=c(rep("agg", 10), rep("org", 10), rep("fut", 10)),                   pear=rnorm(30, 10),                    grape=rnorm(30, 10))

i'd order "apple" in specific way:

appleordered <- c("e", "d", "j", "a", "f", "g", "i", "b", "h", "c")

i've tried this:

dat <- dat[with(dat, order(orange, rep(appleordered, 3))), ]

but seems put "apple" random order. suggestions? thanks.

reordering factor levels:

dat[with(dat, order(orange, as.integer(factor(apple, appleordered)))), ]

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