Displaying 2 results from an estimated 2 matches for "ltxt".
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2007 Dec 03
2
interaction with C++ code (PR#10487)
...aracter data that is passed back from C++ code. A small
example is the following C++ code and R functions.
#include <sstream>
extern "C" {
void extracttxt( char **txt, int *nchars) {
std::ostringstream oss;
oss << "abcdefghij";
const char *ltxt=oss.str().c_str();
for (int j=0;j<*nchars;j++) *txt[j]=static_cast<char>(ltxt[j]);
}
}
# begin R code
dyn.load("test.so")
"testtxt" <- function() {
nchars <- 80
txt <- .C("extracttxt"
,character(nchars)
,as.int...
2010 Jul 22
2
how to write legend of a plot
Dear R Users,
If we issue simple plot command in R we don't get legend of the plot
automatically.
For example, following lines plots two curves, but to write a legend of
these two curves there is no simple command. I checked with ?legend but
it seems bit complicated for me. Does anyone know how to get a legend in a
simple way for following R plot.
Thanks, Yogesh
>plot (x,y,