Displaying 4 results from an estimated 4 matches for "rexpress".
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express
2009 Sep 03
1
Running an expression 1MN times using embedded R
...ue;
}
char *status = (char*)CHAR(STRING_ELT( mess , 0));
// fwrite(&SET_STATUS,sizeof(uint8_t),1,stderr);
// uint32_t stle = strlen(status);
// uint32_t len_rev = reverseUInt(stle);
// fwrite(&len_rev,sizeof(uint32_t),1,stderr);
// fwrite(status,stle,1,stderr);
}
SEXP rexpress(const char* cmd)
{
SEXP cmdSexp, cmdexpr, ans = R_NilValue;
int i,Rerr;
ParseStatus status;
PROTECT(cmdSexp = Rf_allocVector(STRSXP, 1));
SET_STRING_ELT(cmdSexp, 0, Rf_mkChar(cmd));
cmdexpr = PROTECT(R_ParseVector(cmdSexp, -1, &status, R_NilValue));
if (status != PARSE_OK)...
2005 Sep 08
1
execute R expression from command line
Can I execute an R expression from the command line without having it
in an infile, something like perl's -e flag. So it would look like:
R {Rexpression;} > outfile
2003 Mar 07
24
Hello,
I am trying to use 'R' for K-means simulatio, could you please advise me how I can read my data into a two dimesional array? Or is there any method which directly reads the excell file? Please let me know asap.
Regards
Skanda Kallur
Cogito, Ergo Sum! Rene Descartes
2002 Apr 28
2
Image processing? Manipulating image data in R?
Hi!
I am looking for a R library by which i can load images (i found pixmap that
allows it to do).
But in addition i need methods to access the data, get them for example as an
array or matrix to do with this data some processing.
1. Is there a method in the pixmap library to access the matrix in which the
image data is stored.
2. Is there an alternative library running under MS Windows?