Hi all
I have a dataframe like I coppied below
> ff
a b d
1 10 5 7
2 20 4 9
3 3 8 10
4 5 6 8
5 6 3 5
6 73 7 3
7 45 28 9
8 3 2 8
while I am trying to sort multy coloums at once I am not able to get that
like ina order of first column "a" next column "d" after that column "b"
here I tried with
o <- order(a,d,b)
but it returns an error
can any one help me to sort this multy-columns atonce
thanks in advance
kiran
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