Hi
As you did not provide the data it is only a guess. The values are actually factors and in that case they already have unique numeric code.
you can try
as.numeric(yourdata)
If the values are character you can transfer them to factor and use as.numeric.
as.numeric(as.factor(yourdata))
Cheers
Petr
-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Ragia .
Sent: Wednesday, March 09, 2016 9:11 AM
To: r-help at r-project.org
Subject: [R] replace text by uniqe number
Dear group
kindly if i had data frame of 2 columns that has repeated URLS ..and
want to replace those urls with ID's for each one so the url will have
unique ID, how can I do this thanks in advance e.g otf data
pcworld.com open.itworld.com
pcworld.com storage.itworld.com
salon.com images.salon.com
go.theregister.com theregister.co.uk
techchuck.com pcworld.com
ecoustics.com pcworld.com
Ragia
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