[R] Read

[jim holtman]

It looks like we can look at the last digit of the data and that would
be the column number; is that correct?

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.


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 Mon, Feb 22, 2021 at 5:34 PM Jeff Newmiller <jdnewmil using dcn.davis.ca.us> wrote:
>
> This gets it into a data frame. If you know which columns should be numeric you can convert them.
>
> s <-
> "x1  x2  x3 x4
> 1 B22
> 2         C33
> 322 B22      D34
> 4                 D44
> 51         D53
> 60 D62
> "
>
> tc <- textConnection( s )
> lns <- readLines(tc)
> close(tc)
> if ( "" == lns[ length( lns ) ] )
>   lns <- lns[ -length( lns ) ]
>
> L <- strsplit( lns, " +" )
> m <- do.call( rbind, lapply( L[-1], function(v) if (length(v)<length(L[[1]])) c( v, rep(NA, length(L[[1]]) - length(v) ) ) else v ) )
> colnames( m ) <- L[[1]]
> result <- as.data.frame( m, stringsAsFactors = FALSE )
> result
>
> On February 22, 2021 4:42:57 PM PST, Val <valkremk using gmail.com> wrote:
> >That is my problem. The spacing between columns is not consistent.  It
> >  may be  single space  or multiple spaces (two or three).
> >
> >On Mon, Feb 22, 2021 at 6:14 PM Bill Dunlap <williamwdunlap using gmail.com>
> >wrote:
> >>
> >> You said the column values were separated by space characters.
> >> Copying the text from gmail shows that some column names and column
> >> values are separated by single spaces (e.g., between x1 and x2) and
> >> some by multiple spaces (e.g., between x3 and x4.  Did the mail mess
> >> up the spacing or is there some other way to tell where the omitted
> >> values are?
> >>
> >> -Bill
> >>
> >> On Mon, Feb 22, 2021 at 2:54 PM Val <valkremk using gmail.com> wrote:
> >> >
> >> > I Tried that one and it did not work. Please see the error message
> >> > Error in read.table(text = "x1  x2  x3 x4\n1 B12 \n2       C23
> >> > \n322 B32      D34 \n4            D44 \n51     D53\n60 D62
> >",
> >> > :
> >> >   more columns than column names
> >> >
> >> > On Mon, Feb 22, 2021 at 5:39 PM Bill Dunlap
> ><williamwdunlap using gmail.com> wrote:
> >> > >
> >> > > Since the columns in the file are separated by a space character,
> >" ",
> >> > > add the read.table argument sep=" ".
> >> > >
> >> > > -Bill
> >> > >
> >> > > On Mon, Feb 22, 2021 at 2:21 PM Val <valkremk using gmail.com> wrote:
> >> > > >
> >> > > > Hi all, I am trying to read a messy data  but facing
> >difficulty.  The
> >> > > > data has several columns separated by blank space(s).  Each
> >column
> >> > > > value may have different lengths across the rows.   The first
> >> > > > row(header) has four columns. However, each row may not have
> >the four
> >> > > > column values.  For instance, the first data row has only the
> >first
> >> > > > two column values. The fourth data row has the first and last
> >column
> >> > > > values, the second and the third column values are missing for
> >this
> >> > > > row..  How do I read this data set correctly? Here is my sample
> >data
> >> > > > set, output and desired output.   To make it clear to each data
> >point
> >> > > > I have added the row and column numbers. I cannot use fixed
> >width
> >> > > > format reading because each row  may have different length for
> >a
> >> > > > given column.
> >> > > >
> >> > > > dat<-read.table(text="x1  x2  x3 x4
> >> > > > 1 B22
> >> > > > 2         C33
> >> > > > 322 B22      D34
> >> > > > 4                 D44
> >> > > > 51         D53
> >> > > > 60 D62            ",header=T, fill=T,na.strings=c("","NA"))
> >> > > >
> >> > > > Output
> >> > > >       x1  x2     x3     x4
> >> > > > 1   1     B12 <NA> NA
> >> > > > 2   2    C23 <NA>  NA
> >> > > > 3 322  B32  D34   NA
> >> > > > 4   4   D44  <NA>  NA
> >> > > > 5  51 D53  <NA>   NA
> >> > > > 6  60 D62  <NA>  NA
> >> > > >
> >> > > >
> >> > > > Desired output
> >> > > >    x1   x2     x3       x4
> >> > > > 1   1    B22    <NA>   NA
> >> > > > 2   2   <NA>  C33     NA
> >> > > > 3 322  B32    NA      D34
> >> > > > 4   4   <NA>   NA      D44
> >> > > > 5  51  <NA>  D53     NA
> >> > > > 6  60   D62   <NA>   NA
> >> > > >
> >> > > > Thank you,
> >> > > >
> >> > > > ______________________________________________
> >> > > > 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.
> >
> >______________________________________________
> >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.
>
> --
> Sent from my phone. Please excuse my brevity.
> --
> Sent from my phone. Please excuse my brevity.
>
> ______________________________________________
> 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.