Thanks!
*Ben Caldwell*
On Tue, Oct 9, 2012 at 10:18 AM, R. Michael Weylandt <
michael.weyla...@gmail.com> wrote:
>
>
> On Tuesday, October 9, 2012, Benjamin Caldwell wrote:
>
>> Thanks Arun - the different lengths in the list elements was the sticking
>> point. Does anyone have suggestions for packages or R books on indexing/
>> reshaping datasets for an intermediate user like myself?
>
>
> Perhaps Spector on Data Manipulation in R
>
> Cheer
> cheers, rmw
>
>>
>> *Ben Caldwell*
>>
>>
>>
>>
>>
>> On Mon, Oct 8, 2012 at 3:26 PM, arun <smartpink...@yahoo.com> wrote:
>>
>> > Hi,
>> >
>> > Your output suggests that the list elements have unequal lengths. The
>> > empty spaces will be occupied by NAs.
>> > I am using the first three list elements from the tapply() output:
>> >
>> > list1<-list(c(2.8546, 4.0778, 5.2983, 6.3863, 7.5141, 8.5498,
>> 9.5839,
>> > 10.6933),c(7.6810, 8.7648, 9.8382, 10.8903, 11.9840, 13.0541, 14.1132,
>> > 15.1657),c(22.0840, 30.3001, 35.2505, 42.8085, 48.5220, 52.0604,
>> 57.9428,
>> > 61.4930,
>> > 64.4550, 67.3543, 69.8435, 72.9508, 74.4730, 76.3104))
>> > names(list1)<-c("SNRL1Core120","SNRL1Core230","VAL1.1.1NA.na30")
>> >
>> > fun1<-function(x){
>> > na.pad<-function(y,len){
>> > c(y,rep(NA,len-length(y)))
>> > }
>> > maxlen<-max(sapply(x,length))
>> > do.call(data.frame,lapply(x,na.pad,len=maxlen))
>> > }
>> > fun1(list1)
>> > A.K.
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > ----- Original Message -----
>> > From: Benjamin Caldwell <btcaldw...@berkeley.edu>
>> > To: r-help <r-help@r-project.org>
>> > Cc:
>> > Sent: Monday, October 8, 2012 5:49 PM
>> > Subject: [R] turn list into dataframe
>> >
>> > Dear R users,
>> >
>> > I'm starting to use 'apply' functions rather than for loops in R, and
>> > sometimes the output is a bit different than what I want. In this case,
>> the
>> > command was
>> >
>> >
>> > tapply(myvector,myindex,cumsum)
>> >
>> > And the output was something like this:
>> >
>> > $`SNRL1 Core 120`
>> > [1] 2.8546 4.0778 5.2983 6.3863 7.5141 8.5498 9.5839 10.6933
>> >
>> > $`SNRL1 Core 230`
>> > [1] 7.6810 8.7648 9.8382 10.8903 11.9840 13.0541 14.1132 15.1657
>> >
>> > $`VAL 1.1.NA.na30`
>> > [1] 22.0840 30.3001 35.2505 42.8085 48.5220 52.0604 57.9428 61.4930
>> > 64.4550 67.3543 69.8435 72.9508 74.4730 76.3104
>> >
>> > $`VAL 1.2.NA.na15`
>> > [1] 33.8895 38.7440 41.0536 44.1581 46.4891 48.3130 51.0973 52.9241
>> > 54.6404 56.1265 57.5064 59.0745
>> >
>> > $`VAL 1.2.NA.na30`
>> > [1] 6.6408 10.6838 13.8328 15.5435 18.3037 20.3315 22.8817 24.4481
>> > 26.4106 27.6658 29.6455 30.8490 31.8680
>> >
>> > $`VAL 1.3.NA.na10`
>> > [1] 4.8198 7.1274 8.9536 11.5954 14.0845 15.5116 16.9462 18.1269
>> > 19.3453 20.5723 21.7122 22.8643
>> >
>> > $`VAL 1.3.NA.na20`
>> > [1] 5.7382 8.2056 9.4489 10.8225 12.3497 13.6879 15.1077 16.3229
>> >
>> > ,
>> > That's fine, but I need the output as a dataframe. I'm not even sure
>> what
>> > to call this list, but it has multiple entries for each item.
>> >
>> > Forgive the fact that I don't have the data for you to use, I'm
>> wondering
>> > if anyone knows about a pre-existing function that will allow be to turn
>> > the above list form into a dataframe. Thanks
>> >
>> >
>> > *Ben Caldwell*
>> >
>> > [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > R-help@r-project.org mailing list
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> > http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>> >
>> >
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
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