Dear All, I assume this is an R-devel issue, apologies if I missed something obvious. I have a dataframe where the row names are country codes, based on ISO 3166, something like this: ------------ "v1" "v2" "UK" 1 2 "NA" 2 3 ------------ It happens that "NA" is the country code for "Namibia", and that creates problems on using this data within a package due to this: Error in read.table(zfile, header = TRUE, as.is = FALSE) : missing values in 'row.names' are not allowed I realise that NA is reserved in R, but I assumed that when quoted it would be usable. For the moment I simply changes the country code, but I wonder if there's any (other) solution to circumvent this issue. Thanks very much in advance, Adrian -- Adrian Dusa Romanian Social Data Archive 1, Schitu Magureanu Bd. 050025 Bucharest sector 5 Romania Tel.:+40 21 3126618 \ ? ? ? ?+40 21 3120210 / int.101 Fax: +40 21 3158391
On 05-Apr-2012 11:03:15 Adrian Dusa wrote:> Dear All, > > I assume this is an R-devel issue, apologies if I missed something > obvious. I have a dataframe where the row names are country codes, > based on ISO 3166, something like this: > > ------------ > "v1" "v2" > "UK" 1 2 > "NA" 2 3 > ------------ > > It happens that "NA" is the country code for "Namibia", and that > creates problems on using this data within a package due to this: > > Error in read.table(zfile, header = TRUE, as.is = FALSE) : > missing values in 'row.names' are not allowed > > I realise that NA is reserved in R, but I assumed that when quoted it > would be usable. > For the moment I simply changes the country code, but I wonder if > there's any (other) solution to circumvent this issue. > > Thanks very much in advance, > AdrianHi Adrian, The default in read.table() for the "na.strings" parameter is na.strings = "NA" So, provided you have no "NA" in the data portion of your file (or e.g. any missing values are simply blank) you could use something like: read.table(zfile, header = TRUE, as.is = FALSE, na.strings="OOPS") which should avoid the problem. Hoping this helps, Ted. ------------------------------------------------- E-Mail: (Ted Harding) <Ted.Harding at wlandres.net> Date: 05-Apr-2012 Time: 12:21:57 This message was sent by XFMail
Hi Ted, On Thu, Apr 5, 2012 at 14:22, Ted Harding <Ted.Harding at wlandres.net> wrote:> On 05-Apr-2012 11:03:15 Adrian Dusa wrote: >> [...] > > Hi Adrian, > The default in read.table() for the "na.strings" parameter is > > ?na.strings = "NA" > > So, provided you have no "NA" in the data portion of your file > (or e.g. any missing values are simply blank) you could use > something like: > > read.table(zfile, header = TRUE, as.is = FALSE, na.strings="OOPS")Sure, that solves the problem on reading the data from R, but the point was it "creates problems on using this data within a package". The error is thrown by: R CMD check --as-cran /path/to/my/package (and I have no direct control over it...) Best, Adrian -- Adrian Dusa Romanian Social Data Archive 1, Schitu Magureanu Bd. 050025 Bucharest sector 5 Romania Tel.:+40 21 3126618 \ ? ? ? ?+40 21 3120210 / int.101 Fax: +40 21 3158391