An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20121030/76d7d79a/attachment.pl>
newbie: embeding seq in a list
5 messages · Anser Chen, ONKELINX, Thierry, Jessica Streicher +2 more
You first example is a list of 5 items, each item is a number The second example is a list with one item: a vector with 5 elements. You'll need c() to make a vector of the item to get the same result. all.equal(list(c(0.8,0.9,1.0,1.1,1.2)), list(seq(0.8, 1.2, by = 1.1))) ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium + 32 2 525 02 51 + 32 54 43 61 85 Thierry.Onkelinx at inbo.be www.inbo.be To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey -----Oorspronkelijk bericht----- Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Namens Anser Chen Verzonden: dinsdag 30 oktober 2012 13:42 Aan: r-help at r-project.org Onderwerp: [R] newbie: embeding seq in a list Suppose I want to create a structure containing the following values: 0.8,0.9,1.0,1.1,1.2 If I use env <- list(0.8,0.9,1.0,1.1,1.2) then R returns
env
[[1]] [1] 0.8 [[2]] [1] 0.9 [[3]] [1] 1 [[4]] [1] 1.1 [[5]] [1] 1.2 But, if I try to 'save some key-strokes', and use env <- list(seq(0.8,1.2,by=0.1)) then R returns
env
[[1]] [1] 0.8 0.9 1.0 1.1 1.2 I'd like the 'latter' to be equivalent to 'the former', but can't figure out how to achieve said aim. Thanks in advance... ______________________________________________ R-help at 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. * * * * * * * * * * * * * D I S C L A I M E R * * * * * * * * * * * * * Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is door een geldig ondertekend document. The views expressed in this message and any annex are purely those of the writer and may not be regarded as stating an official position of INBO, as long as the message is not confirmed by a duly signed document.
s <- seq(0.8, 1.2, by = 0.1) as.list(s) to get the first type of list from the sequence.
On 30.10.2012, at 16:51, ONKELINX, Thierry wrote:
You first example is a list of 5 items, each item is a number The second example is a list with one item: a vector with 5 elements. You'll need c() to make a vector of the item to get the same result. all.equal(list(c(0.8,0.9,1.0,1.1,1.2)), list(seq(0.8, 1.2, by = 1.1))) ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium + 32 2 525 02 51 + 32 54 43 61 85 Thierry.Onkelinx at inbo.be www.inbo.be To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey -----Oorspronkelijk bericht----- Van: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] Namens Anser Chen Verzonden: dinsdag 30 oktober 2012 13:42 Aan: r-help at r-project.org Onderwerp: [R] newbie: embeding seq in a list Suppose I want to create a structure containing the following values: 0.8,0.9,1.0,1.1,1.2 If I use env <- list(0.8,0.9,1.0,1.1,1.2) then R returns
env
[[1]] [1] 0.8 [[2]] [1] 0.9 [[3]] [1] 1 [[4]] [1] 1.1 [[5]] [1] 1.2 But, if I try to 'save some key-strokes', and use env <- list(seq(0.8,1.2,by=0.1)) then R returns
env
[[1]]
[1] 0.8 0.9 1.0 1.1 1.2
I'd like the 'latter' to be equivalent to 'the former', but can't figure out how to achieve said aim.
Thanks in advance...
[[alternative HTML version deleted]]
______________________________________________ R-help at 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. * * * * * * * * * * * * * D I S C L A I M E R * * * * * * * * * * * * * Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is door een geldig ondertekend document. The views expressed in this message and any annex are purely those of the writer and may not be regarded as stating an official position of INBO, as long as the message is not confirmed by a duly signed document. ______________________________________________ R-help at 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.
Hello Just add "c()" collector as follows : env <- list(c(0.8,0.9,1.0,1.1,1.2)) Cheers Guillaume -- View this message in context: http://r.789695.n4.nabble.com/Re-newbie-embeding-seq-in-a-list-tp4647884p4647896.html Sent from the R help mailing list archive at Nabble.com.
Pass a vector to list() instead of individual values:
env <- list(c(0.8,0.9,1.0,1.1,1.2)) env
[[1]] [1] 0.8 0.9 1.0 1.1 1.2 ------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Anser Chen Sent: Tuesday, October 30, 2012 7:42 AM To: r-help at r-project.org Subject: [R] newbie: embeding seq in a list Suppose I want to create a structure containing the following values: 0.8,0.9,1.0,1.1,1.2 If I use env <- list(0.8,0.9,1.0,1.1,1.2) then R returns
env
[[1]] [1] 0.8 [[2]] [1] 0.9 [[3]] [1] 1 [[4]] [1] 1.1 [[5]] [1] 1.2 But, if I try to 'save some key-strokes', and use env <- list(seq(0.8,1.2,by=0.1)) then R returns
env
[[1]] [1] 0.8 0.9 1.0 1.1 1.2 I'd like the 'latter' to be equivalent to 'the former', but can't figure out how to achieve said aim. Thanks in advance... ______________________________________________ R-help at 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.