[R] Quick fix formatting
jholtman at gmail.com
Mon Apr 7 19:04:32 CEST 2008
I would guess that your first column is factors. So an 'str' on the
dataframe to see what it is made of. You can convert them to numeric:
df[] <- as.numeric(as.character(df[]))
See if you get any NAs for non-numerics that may be in that column
On 4/7/08, Jamie Ledingham <jamie.ledingham at newcastle.ac.uk> wrote:
> Hi all,
> I'm hoping there's a quick fix for this.
> I have two data frames and am running a loop to match similar rows.
> However the matching is not working well, and I suspect it is because of
> the different formats of columns. For example, in col. 1 of dataframe 1
> the nummbers are formatted as 1,2,3,4,5,6,7,8,9...31 However in col. 1
> dataframe 2 the numbers are 01,02,03,04,05,06,07,08,09...31 After
> investigation it seems only the numbers below 10 do not match up well
> (i.e. those with a 0 in).
> My question is: is there a quick fix so I can convert the first set of
> numbers into the format of the second? I could write a loop and if
> statement but that seems a lot and I thought there must be an easier way
> out there. However having searched the archives, nothing has appeared.
> R-help at r-project.org mailing list
> 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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What is the problem you are trying to solve?
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