Displaying 4 results from an estimated 4 matches for "symbolvalu".
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2013 Dec 17
3
In-string variable/symbol substitution: What formats/syntax is out there?
...'Biobase' package (with some efforts), e.g.
> bbsubst <- function(fmt, ...) {
args <- lapply(list(...), FUN=as.character)
in <- textConnection(fmt)
out <- textConnection("res", open="w")
on.exit({ close(in); close(out) })
copySubstitute(in, out, symbolValues=args)
res
}
> bbsubst("pi = @pi@", pi=pi)
[1] "pi = 3.14159265358979"
2003 Apr 16
0
vignette segfault bt
...ions.c:289
289 this->wpos = ftell(this->fp);
(gdb) bt
#0 0x080786ff in file_fgetc (con=0xbfffc830) at connections.c:289
#1 0x080a9ce1 in con_getc () at /ext/R/cvs/R-devel/src/main/gram.y:1130
#2 0x080a881b in xxgetc () at /ext/R/cvs/R-devel/src/main/gram.y:287
#3 0x080aa947 in SymbolValue (c=255)
at /ext/R/cvs/R-devel/src/main/gram.y:1673
#4 0x080aab01 in token () at /ext/R/cvs/R-devel/src/main/gram.y:1744
#5 0x080aaefa in Rf_yylex () at /ext/R/cvs/R-devel/src/main/gram.y:1886
#6 0x080a87e4 in Rf_yyparse () at
/usr/local/share/bison/bison.simple:595
#7 0x080a98cd in R_Parse...
2003 Apr 05
0
sweave/gc segfault bt
...1
291 fseek(this->fp, this->rpos, SEEK_SET);
(gdb) bt
#0 0x080784ff in file_fgetc (con=0xbfffc8a0) at connections.c:291
#1 0x080a9f12 in con_getc () at /ext/R/cvs/R-devel/src/main/gram.y:1130
#2 0x080a8a2b in xxgetc () at /ext/R/cvs/R-devel/src/main/gram.y:287
#3 0x080aab78 in SymbolValue (c=0) at
/ext/R/cvs/R-devel/src/main/gram.y:1673
#4 0x080aad30 in token () at /ext/R/cvs/R-devel/src/main/gram.y:1744
#5 0x080ab12a in Rf_yylex () at /ext/R/cvs/R-devel/src/main/gram.y:1886
#6 0x080a89f4 in Rf_yyparse () at
/usr/local/share/bison/bison.simple:595
#7 0x080a9afd in R_Parse1 (sta...
2005 May 07
4
string syntactic sugar in R? - long post
Currently in R, constructing a string containing
values of variables is done using 'paste' and can be
an error-prone and traumatic experience. For example,
when constructing a db query we have to write,
paste("SELECT " value " FROM table where
date ='",cdate,"'")
we are getting null result from it, because without
(forgotten...)