Thank you very much for your detailed explanation and two solutions,
Duncan.
Denis
Le 07-10-27 à 12:44, Duncan Murdoch a écrit :
> Chabot Denis wrote:
>> Dear R users,
>>
>> I need to reorder a dataframe using 3 variables for the determine
>> the sorting order.
>>
>> When I create a simple d
Chabot Denis wrote:
> Dear R users,
>
> I need to reorder a dataframe using 3 variables for the determine the
> sorting order.
>
> When I create a simple dataframe to test the method, things work as I
> expected:
>
> a1 <- rep(1:10, each=8)
> a2 <- rep(rep(1:2, each=4), 10)
> a3 <- rep(c(1:4),2
Dear R users,
I need to reorder a dataframe using 3 variables for the determine the
sorting order.
When I create a simple dataframe to test the method, things work as I
expected:
a1 <- rep(1:10, each=8)
a2 <- rep(rep(1:2, each=4), 10)
a3 <- rep(c(1:4),20)
(a <- data.frame(a1, a2, a3))
for e
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