Message-ID: <CAGgJW76R-T2DcJTgv4xG0KGyf_Kp_eHqsyFGxBPYq=+roQ7PqA@mail.gmail.com>
Date: 2022-03-30T03:35:36Z
From: Eric Berger
Subject: Inserting missing seq number
In-Reply-To: <01fd01d843e0$6fc9efb0$4f5dcf10$@sbcglobal.net>
Hi Jeff,
tidyr::fill() will do what you want
aDf <- data.frame(seq=1:7)
bDf <- left_join(aDf,df,by="seq")
tidyr::fill(bDf,count)
HTH,
Eric
On Wed, Mar 30, 2022 at 5:47 AM Jeff Reichman <reichmanj at sbcglobal.net>
wrote:
> R-help
>
> Is there a R function that will insert missing sequence number(s) and then
> fill a missing observation with the preceding value.
>
> For example df <- data.frame(seq = c(1,2,4,5,7), count = c(4,7,3,5,2))
>
> seq count
> 1 1 4
> 2 2 7
> 3 4 3
> 4 5 5
> 5 7 2
>
> What I need is
>
> seq count
> 1 1 4
> 2 2 7
> 3 3 7
> 4 4 3
> 5 5 5
> 6 6 5
> 7 7 2
>
> Jeff
>
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