R help - Mar 2006 - R CMD check: problems possibly from mapply?

Dear expeRts,

I am trying to wrap up a package "utilities" (for my internal use).
After
adding a function datNAtreat that uses mapply, R CMD check gives WARNINGs 
for "S3 generic/method consistency", "checking replacement
functions"
and?"checking foreign function calls", all of which are accompanied by
the
following error message:

Error in .try_quietly ....: Error: unable to load R code in 
package 'utilities' 
Execution halted

Additionally, I get?an ERROR for missing documentation entries (which I
don't
understand, because this function like all others is documented).

R CMD check works without problems when omitting this function. The function 
itself also works when running the code outside the package. I have now 
stripped it down (omitted error controls etc., it still works), and can only 
guess that the R CMD check problems have to do with mapply (with which I am 
not all that familiar).

I include the code (not reproducible) in case someone has an idea what I can 
do to make this function packageable. (The function as.factora is defined 
elsewhere in the package and takes the arguments x (a column of a data 
frame), na.level and na.show (a logical).):

##########################################################
datNAtreat <- function(x, na.levels=NULL, na.show=FALSE) {
    if (!is.data.frame(x)) x <- as.data.frame(x)
    names <- colnames(x)
    if (is.null(names)) names <-
paste("x",1:ncol(x),sep="")
    x <- as.data.frame(mapply(as.factora, x, na.level=na.levels, 
             MoreArgs=list(na.show = na.show), SIMPLIFY=FALSE))
    colnames(x) <- names
    return(x)
}
############################################################

Any suggestions are appreciated, as I have no idea where else to look.

With kind regards, Ulrike

Sorry, just pressing the send button brought the solution :-)

The problem has nothing to do with any programming issues, but rather with 
confusion about directories to use R CMD from.

Regards, Ulrike

---------- Forwarded Message ----------- 
From: "Ulrike Gr?mping" <groemp at tfh-berlin.de> 
To: r-help at stat.math.ethz.ch 
Sent: Tue, 14 Mar 2006 15:25:05 +0100 
Subject: R CMD check: problems possibly from mapply?

Dear expeRts,

I am trying to wrap up a package "utilities" (for my internal use).
After
adding a function datNAtreat that uses mapply, R CMD check gives WARNINGs 
for "S3 generic/method consistency", "checking replacement
functions"
and?"checking foreign function calls", all of which are accompanied by
the
following error message:

Error in .try_quietly ....: Error: unable to load R code in 
package 'utilities' 
Execution halted

Additionally, I get?an ERROR for missing documentation entries (which I
don't
understand, because this function like all others is documented).

R CMD check works without problems when omitting this function. The function 
itself also works when running the code outside the package. I have now 
stripped it down (omitted error controls etc., it still works), and can only 
guess that the R CMD check problems have to do with mapply (with which I am 
not all that familiar).

I include the code (not reproducible) in case someone has an idea what I can 
do to make this function packageable. (The function as.factora is defined 
elsewhere in the package and takes the arguments x (a column of a data 
frame), na.level and na.show (a logical).):

########################################################## 
datNAtreat <- function(x, na.levels=NULL, na.show=FALSE) { 
? ?if (!is.data.frame(x)) x <- as.data.frame(x) 
? ?names <- colnames(x) 
? ?if (is.null(names)) names <-
paste("x",1:ncol(x),sep="")
? ?x <- as.data.frame(mapply(as.factora, x, na.level=na.levels, 
? ? ? ? ? ? MoreArgs=list(na.show = na.show), SIMPLIFY=FALSE)) 
? ?colnames(x) <- names 
? ?return(x) 
} 
############################################################

Any suggestions are appreciated, as I have no idea where else to look.

With kind regards, Ulrike

------- End of Forwarded Message -------

****************************** 
Prof. Dr. Ulrike Gr?mping 
Fachbereich II 
TFH Berlin 
Luxemburger Str. 10 
13353 Berlin 
mail: groemping at tfh-berlin.de 
www: www.tfh-berlin.de/~groemp/