On Fri, Aug 20, 2010 at 9:59 AM, Cecilia Carmo wrote:
> The last one worked! The other one, not.
> Thank you very much!
>
> Another question about merge(): sometimes I'm merging two dataframes and the
> merged dataframe has much more rows than the two merged? I think this should
> not happen,does
The last one worked! The other one, not.
Thank you very much!
Another question about merge(): sometimes I'm merging two
dataframes and the merged dataframe has much more rows
than the two merged? I think this should not happen,does
it?
Cecília
Em Fri, 20 Aug 2010 09:37:26 -0400
Gabor Grot
On Fri, Aug 20, 2010 at 9:33 AM, Gabor Grothendieck
wrote:
> On Fri, Aug 20, 2010 at 9:27 AM, Cecilia Carmo wrote:
>> It wasn't the merge command. It doesn't create the variable x3.
>>
>> Cecília
>>
>>
>
> How about:
>
> x$k3 <- with(x, unlist(tapply(k1, k1, seq_along)))
> y$k3 <- with(y, unlist(
On Fri, Aug 20, 2010 at 9:27 AM, Cecilia Carmo wrote:
> It wasn't the merge command. It doesn't create the variable x3.
>
> Cecília
>
>
How about:
x$k3 <- with(x, unlist(tapply(k1, k1, seq_along)))
y$k3 <- with(y, unlist(tapply(k1, k1, seq_along)))
__
It wasn't the merge command. It doesn't create the
variable x3.
Cecília
Em Fri, 20 Aug 2010 09:22:29 -0400
Gabor Grothendieck escreveu:
On Fri, Aug 20, 2010 at 9:07 AM, Cecilia Carmo
wrote:
This is what I need, but my dataframe has many rows and
it returns to me the
following message:
E
On Fri, Aug 20, 2010 at 9:07 AM, Cecilia Carmo wrote:
> This is what I need, but my dataframe has many rows and it returns to me the
> following message:
>
> Error: cannot allocate vector of size 120 Kb
> In addition: There were 18 warnings (use warnings() to see them)
>
Assuming that its the mer
The rule is not important to me. I'm selecting a sample
that must have one important feature: the same number of
obs from x and from y with the same k1.
Thanks
Cecília
Em Fri, 20 Aug 2010 08:28:24 -0400
David Winsemius escreveu:
On Aug 20, 2010, at 6:44 AM, Cecilia Carmo wrote:
Hi everyo
This is what I need, but my dataframe has many rows and it
returns to me the following message:
Error: cannot allocate vector of size 120 Kb
In addition: There were 18 warnings (use warnings() to see
them)
Could you help me,
Thanks
Cecília
Em Fri, 20 Aug 2010 08:30:16 -0400
Gabor Grothendi
..gabor gave the solution during i was typing -
so please disregard this.
yours,
kay
-
Kay Cichini
Postgraduate student
Institute of Botany
Univ. of Innsbruck
--
View this message in context:
http://r.789695.n4.nabble.com/paired-samples-m
hello cecilia,
i tried:
yn<-y[y$k1%in%x$k1,]
xn<-x[x$k1%in%y$k1,]
x1st<-unique(match(yn$k1,xn$k1))
y1st<-unique(match(xn$k1,yn$k1))
new<-cbind(k1=intersect(y$k1,x$k1),k2.x=xn[x1st,2],k2.y=yn[y1st,2])
giving:
k1 k2.x k2.y
[1,] 1 20 10
[2,] 2 22 12
[3,] 3 23 14
[4,] 5 25
On Fri, Aug 20, 2010 at 6:44 AM, Cecilia Carmo wrote:
> Hi everyone!
>
> I'm matching two samples to create one sample that have
> pairs of observations equal for the k1 variable. Merge() doesn't work
> because I dont't want to recycle the values.
>
> x <- data.frame(k1=c(1,1,2,3,3,5), k2=c(20,21,
On Aug 20, 2010, at 6:44 AM, Cecilia Carmo wrote:
Hi everyone!
I'm matching two samples to create one sample that have
pairs of observations equal for the k1 variable. Merge() doesn't
work because I dont't want to recycle the values.
When there is more than one possible match in either y o
Hi Cecília,
Assuming that you want to pair two samples as more as possible, let's
relabel the k1 indices. The x$k1 c(1,1,2,3,3,5) could be relabeled as
c(1.01,1.02,2.01,3.01,3.02,5.01), so as y$k1.
x$k1 <- x$k1+sequence(rle(x$k1)$lengths)/100
y$k1 <- y$k1+sequence(rle(y$k1)$lengths)/100
merge(x
Hi everyone!
I'm matching two samples to create one sample that have
pairs of observations equal for the k1 variable. Merge()
doesn't work because I dont't want to recycle the values.
x <- data.frame(k1=c(1,1,2,3,3,5),
k2=c(20,21,22,23,24,25))
x
y <- data.frame(k1=c(1,1,2,2,3,4,5,5),
k2=c(1
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