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CVE/CVE_C/src/export.c

58 lines
1.6 KiB
C

#include "cve.h"
// SEXP rStiefl_c(SEXP pin, SEXP qin) {
// int p = asInteger(pin);
// int q = asInteger(qin);
// SEXP Vout = PROTECT(allocMatrix(REALSXP, p, q));
// int workLen = 2 * (p + 1) * q;
// double *workMem = (double*)R_alloc(workLen, sizeof(double));
// rStiefl(p, q, REAL(Vout), workMem, workLen);
// UNPROTECT(1);
// return Vout;
// }
SEXP cve_simple(SEXP X, SEXP Y, SEXP k, SEXP h,
SEXP tau, SEXP tol,
SEXP epochs, SEXP attempts,
SEXP logger, SEXP loggerEnv) {
/* Handle logger parameter, set to NULL pointer if not a function. */
if (!(isFunction(logger) && isEnvironment(loggerEnv))) {
logger = (SEXP)0;
}
/* Get dimensions. */
int n = nrows(X);
int p = ncols(X);
int q = p - asInteger(k);
/* Convert types if needed. */
// TODO:
/* Create output list. */
SEXP Vout = PROTECT(allocMatrix(REALSXP, p, q));
SEXP Lout = PROTECT(allocVector(REALSXP, n));
/* Call CVE simple subroutine. */
cve_simple_sub(n, p, q,
REAL(X), REAL(Y), asReal(h),
asReal(tau), asReal(tol),
asInteger(epochs), asInteger(attempts),
REAL(Vout), REAL(Lout),
logger, loggerEnv);
SEXP out = PROTECT(allocVector(VECSXP, 2));
SET_VECTOR_ELT(out, 0, Vout);
SET_VECTOR_ELT(out, 1, Lout);
SEXP names = PROTECT(allocVector(STRSXP, 2));
SET_STRING_ELT(names, 0, mkChar("V"));
SET_STRING_ELT(names, 1, mkChar("L"));
setAttrib(out, R_NamesSymbol, names);
UNPROTECT(4);
return out;
}