[R] I bet apply has a solution
Rolf Turner
rolf.turner at xtra.co.nz
Tue Feb 7 00:16:24 CET 2012
No. This does not do anything like what the OP wanted.
Did you ***try*** it, for crying out loud?
cheers,
Rolf Turner
On 07/02/12 08:29, ilai wrote:
> duplicated(Data..)
>
> On Mon, Feb 6, 2012 at 11:34 AM, LCOG1<jroll at lcog.org> wrote:
>> Hi all
>> For the data below, I would like to return a logical value indicating
>> differences in the data.
>>
>> #Create data
>> Data..<-data.frame(a=rep(1,10),b=c(rep(1,9),2),c=c(rep(1,8),2,2))
>>
>> a b c
>> 1 1 1 1
>> 2 1 1 1
>> 3 1 1 1
>> 4 1 1 1
>> 5 1 1 1
>> 6 1 1 1
>> 7 1 1 1
>> 8 1 1 1
>> 9 1 1 2
>> 10 1 2 2
>>
>>
>> So what I want is to return logical value telling me if all the values are
>> the same. So the result would be a b c DidChange
>> 1 1 1 1 FALSE
>> 2 1 1 1 FALSE
>> 3 1 1 1 FALSE
>> 4 1 1 1 FALSE
>> 5 1 1 1 FALSE
>> 6 1 1 1 FALSE
>> 7 1 1 1 FALSE
>> 8 1 1 1 FALSE
>> 9 1 1 2 TRUE
>> 10 1 2 2 TRUE
>>
>> I bet apply could handle this elegantly but that family of functions is
>> still not 100% intuitive to me. Thoughts. Thanks everyone
>>
>> Cheers,
>> Josh
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