[R] Beginner needs help with R

[Bert Gunter]

No need for sprintf(). Simply:

> paste0("DQ0",seq.int(60054,60060))

[1] "DQ060054" "DQ060055" "DQ060056" "DQ060057" "DQ060058" "DQ060059"
[7] "DQ060060"


Cheers,
Bert

Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Mon, Feb 6, 2017 at 5:45 AM, jim holtman <jholtman at gmail.com> wrote:
> You need the leading zeros, and 'numerics' just give the number without
> leading zeros.  You can use 'sprintf' for create a character string with
> the leading zeros:
>
>> # this is using 'numeric' and drops leading zeros
>>
>> seq1 <- paste("DQ", seq(060054, 060060), sep = "")
>> seq1
> [1] "DQ60054" "DQ60055" "DQ60056" "DQ60057" "DQ60058" "DQ60059" "DQ60060"
>>
>> # use 'sprintf' to create leading zeros
>> seq2 <- paste0("DQ", sprintf("%06d", seq(060054, 060060)))
>> seq2
> [1] "DQ060054" "DQ060055" "DQ060056" "DQ060057" "DQ060058" "DQ060059"
> "DQ060060"
>>
>
>
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
> Tell me what you want to do, not how you want to do it.
>
> On Sun, Feb 5, 2017 at 8:50 PM, Nabila Arbi <nabilaelarbi1912 at gmail.com>
> wrote:
>
>> Dear R-Help Team!
>>
>> I have some trouble with R. It's probably nothing big, but I can't find a
>> solution.
>> My problem is the following:
>> I am trying to download some sequences from ncbi using the ape package.
>>
>> seq1 <- paste("DQ", seq(060054, 060060), sep = "")
>>
>> sequences <- read.GenBank(seq1,
>> seq.names = seq1,
>> species.names = TRUE,
>> gene.names = FALSE,
>> as.character = TRUE)
>>
>> write.dna(sequences, "mysequences.fas", format = "fasta")
>>
>> My problem is, that R doesn't take the whole sequence number as "060054"
>> but it puts it as DQ60054 (missing the zero in the beginning, which is
>> essential).
>>
>> Could please tell me, how I can get R to accepting the zero in the
>> beginning of the accession number?
>>
>> Thank you very much in advance and all the best!
>>
>> Nabila
>>
>>         [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> 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 at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.