[R] Quick fix formatting

From: Jamie Ledingham <jamie.ledingham_at_newcastle.ac.uk>
Date: Mon, 07 Apr 2008 17:34:39 +0100

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.


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