Displaying 3 results from an estimated 3 matches for "ricoercevector".
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coercevector
2006 Apr 25
1
protection needed?
...bject anymore. I
tried to find out by looking into the R sources but didn't find
something similar.
It's about the variable _skipLines in the call "function ReadXls(
_file, _sheet, _type, _header, _colHeader, _skipLines: pSExp ): pSExp;
cdecl;".
I did:
skipLines:= riInteger( riCoerceVector( _skipLines, setIntSxp ) )[0];
but am unsure if I would have to something along:
skipInt:= riProtect( riCoerceVector( _skipLines, setIntSxp ) );
skipLines:= riInteger( skipInt )[0];
riUnprotect( 1 );
According to the manual the second is probably more appropriate but as
I found some p...
2006 Apr 12
0
headerfile translation to Delphi (Pascal) completed
...= 0 to _nb^ - 1 do begin
_ab[i + j]:= _ab[i + j] + _a[i]*_b[j]
end {for};
end {for};
end {ConvC};
{ ConvCallRInternals }
function ConvCallRInternals( _a, _b: pSExp ): pSExp; cdecl;
var
i, j, na, nb, nab: aRLen;
pxa, pxb, pxab: pDoubleArr;
begin
_a:= riProtect( riCoerceVector( _a, setRealSxp ) );
_b:= riProtect( riCoerceVector( _b, setRealSxp ) );
na:= riLength( _a ); nb:= riLength( _b ); nab:= na + nb - 1;
result:= riProtect( riAllocVector( setRealSxp, nab ) );
pxa:= riReal( _a ); pxb:= riReal( _b );
pxab:= riReal( result );
for i := 0 to nab...
2006 Oct 16
6
NULL or NA for missing function arguments?
Hi,
I am troubled by the use of NULL or NA to indicate
missing/non-specified function arguments.
In the R code that I have looked at, it seems that both forms are used
(NULL seems to be used more often though). Sometimes both variants are
in the same declaration, e.g.
format.default <-
function(x, trim = FALSE, digits = NULL, nsmall = 0,
justify = c("left",