search for: lglvec

Displaying 4 results from an estimated 4 matches for "lglvec".

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2018 Jan 22
2
as.character(list(NA))
...n 01/20/2018 08:24 AM, William Dunlap via R-devel wrote: > I believe that for a list as.character() applies deparse() to each element > of the list. deparse() does not preserve NA-ness, as it is intended to > make text that the parser can read. > >> str(as.character(list(Na=NA, LglVec=c(TRUE,NA), > Function=function(x){x+1}))) > chr [1:3] "NA" "c(TRUE, NA)" "function (x) \n{\n x + 1\n}" > This really comes as a surprise though since coercion to all the other atomic types (except raw) preserve the NAs. And also as.character(unlist(li...
2018 Jan 20
3
as.character(list(NA))
As of R Under development (unstable) (2018-01-19 r74138): > as.character(list(NA)) [1] "NA" > is.na(as.character(list(NA))) [1] FALSE
2018 Jan 22
1
as.character(list(NA))
...m Dunlap via R-devel wrote: > > I believe that for a list as.character() applies deparse() to each > element > > of the list. deparse() does not preserve NA-ness, as it is intended to > > make text that the parser can read. > > > >> str(as.character(list(Na=NA, LglVec=c(TRUE,NA), > > Function=function(x){x+1}))) > > chr [1:3] "NA" "c(TRUE, NA)" "function (x) \n{\n x + 1\n}" > > > > This really comes as a surprise though since coercion to all the > other atomic types (except raw) preserve the NAs. >...
2018 Jan 22
0
as.character(list(NA))
...n 01/20/2018 08:24 AM, William Dunlap via R-devel wrote: > I believe that for a list as.character() applies deparse() to each element > of the list. deparse() does not preserve NA-ness, as it is intended to > make text that the parser can read. > >> str(as.character(list(Na=NA, LglVec=c(TRUE,NA), > Function=function(x){x+1}))) > chr [1:3] "NA" "c(TRUE, NA)" "function (x) \n{\n x + 1\n}" > This really comes as a surprise though since coercion to all the other atomic types (except raw) preserve the NAs. And also as.character(unlist(li...