HI,
If I understand correctly, you could also try:
set.seed(48)
d2 <-
as.data.frame(matrix(sample(c("",letters[1:2]),26*245,replace=TRUE),26,245))
d2[3,] <- ""
names1 <-paste0("V",13:239)
res <- d2[rowSums(d2[,names1]=="") < ncol(d2[,names1]),names1]
A.K.
On Thursday, January 2, 2014 1:20 AM, Luca Meyer <lucam1...@gmail.com> wrote:
Happy new year fellows,
I am trying to do something I believe should be fairly straightforward but
I cannot find my way out.
My dataset d2 is 26 rows by 245 columns, exclusively char variables. I
would like to check whether at least one column from V13 till V239 (they
are in numerical sequence) has been filled in, so I try
d2$check <- c(d2$V13:d2$V239)
and/or
d2$check <- paste(d2$V13:d2$V239,sep="")
but I get (translated from Italian):
Error in d2$V13:d2$V239 : argument NA/NaN
I have tried nchar but the same error occurs. I have also tried to run the
above functions on a smaller variable subset (V13, V14, V15, see below for
details) just to double check in case some variable would erroneously be in
another format, but the same occur.
> d2$V13
[1] "" "" ""
"" "" "" "da -5.1% a -10%"
""
[9] "" "" ""
"" "" "" ""
""
[17] "" "" ""
"" "" "" ""
""
[25] "" ""
> d2$V14
[1] "" "" ""
"" "" "" "da -10.1% a -15%"
""
[9] "" "" ""
"" "" "" ""
""
[17] "" "" ""
"" "" "" ""
""
[25] "" ""
> d2$V15
[1] "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" ""
"" "" ""
Can anyone suggest an alternative function for me to create a variable that
checks whether there is at least one value for each of the 26 records I
need to analyze?
Thank you in advance,
Luca
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
