[R] Inserting missing seq number

[Jeff Reichman]

Petr & Eric

Thank you for the two options.  Figured there was an easy straight forward
way.

Jeff

-----Original Message-----
From: PIKAL Petr <petr.pikal using precheza.cz> 
Sent: Wednesday, March 30, 2022 12:59 AM
To: reichmanj using sbcglobal.net
Cc: r-help using r-project.org
Subject: RE: [R] Inserting missing seq number

Hallo Jeff

Similar result you will get by na.locf function from zoo package

df <- data.frame(seq = c(1,2,4,5,7), count = c(4,7,3,5,2))
vec <-data.frame(seq =1:7)
df <- merge(vec, df, all=T)
library(zoo)
df$count <- na.locf(df$count)

Cheers
Petr

> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Eric Berger
> Sent: Wednesday, March 30, 2022 5:36 AM
> To: reichmanj using sbcglobal.net
> Cc: r-help using r-project.org
> Subject: Re: [R] Inserting missing seq number
> 
> 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 using 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
> >
> > ______________________________________________
> > R-help using 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.
> >
> 
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> 
> ______________________________________________
> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
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> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.