[R] Extract

[Bert Gunter]

I did not look closely at the solutions that you were offered, but
note that you did not specify in your post whether the numbers in your
string were to be character or numeric variables after they are broken
out into their own columns. I believe that they are character in the
solutions, but you should check this. If you want them as numeric,
e.g., for further processing, you will need to convert them. Or
vice-versa.

Bert


On Fri, Jul 19, 2024 at 9:52 AM Val <valkremk using gmail.com> wrote:
>
> Hi All,
>
> I want to extract new variables from a string and add it to the dataframe.
> Sample data is csv file.
>
> dat<-read.csv(text="Year, Sex,string
> 2002,F,15 xc Ab
> 2003,F,14
> 2004,M,18 xb 25 35 21
> 2005,M,13 25
> 2006,M,14 ac 256 AV 35
> 2007,F,11",header=TRUE)
>
> The string column has  a maximum of five variables. Some rows have all
> and others may not have all the five variables. If missing then  fill
> it with NA,
> Desired result is shown below,
>
>
> Year,Sex,string, S1, S2, S3 S4,S5
> 2002,F,15 xc Ab, 15,xc,Ab, NA, NA
> 2003,F,14, 14,NA,NA,NA,NA
> 2004,M,18 xb 25 35 21,18, xb, 25, 35, 21
> 2005,M,13 25,13, 25,NA,NA,NA
> 2006,M,14 ac 256 AV 35, 14, ac, 256, AV, 35
> 2007,F,11, 11,NA,NA,NA,NA
>
> Any help?
> Thank you in advance.
>
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