t_subassign.c File Reference

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Macros
#define	MATRIX_SUBASSIGN_VERBOSE

Functions
SEXP	Csparse_subassign (SEXP x, SEXP i_, SEXP j_, SEXP value)
	Subassignment: x[i,j] <- value.

Macro Definition Documentation

MATRIX_SUBASSIGN_VERBOSE

#define MATRIX_SUBASSIGN_VERBOSE

Function Documentation

Csparse_subassign()

SEXP Csparse_subassign	(	SEXP	x,
		SEXP	i_,
		SEXP	j_,
		SEXP	value
	)

Subassignment: x[i,j] <- value.

Parameters

x
i_	integer row index 0-origin vector (as returned from R .ind.prep2())
j_	integer column index 0-origin vector
value	must be a [dln]sparseVector {which is recycled if needed}

Returns

a Csparse matrix like x, but with the values replaced

but — in the case of x slot put a 0 zero there, and only at the very end drop them,

Definition at line 122 of file t_subassign.c.

References _, GET_SLOT, Matrix_diagSym, Matrix_DimNamesSym, Matrix_DimSym, Matrix_iSym, Matrix_lengthSym, Matrix_pSym, Matrix_uploSym, Matrix_xSym, newObject(), SET_SLOT, x_complex, x_double, x_integer, x_logical, and x_pattern.