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[matrix] Diff of /pkg/src/Mutils.h
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Diff of /pkg/src/Mutils.h

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revision 588, Wed Mar 2 18:19:51 2005 UTC revision 796, Mon Jul 4 14:57:28 2005 UTC
# Line 53  Line 53 
53                  int ap[], int ai[], double ax[]);                  int ap[], int ai[], double ax[]);
54  void ssc_symbolic_permute(int n, int upper, const int perm[],  void ssc_symbolic_permute(int n, int upper, const int perm[],
55                            int Ap[], int Ai[]);                            int Ap[], int Ai[]);
 double *nlme_symmetrize(double *a, const int nc);  
 void nlme_check_Lapack_error(int info, const char *laName);  
 SEXP nlme_replaceSlot(SEXP obj, SEXP names, SEXP value);  
 SEXP nlme_weight_matrix_list(SEXP MLin, SEXP wts, SEXP adjst, SEXP MLout);  
56  SEXP Matrix_make_named(int TYP, char **names);  SEXP Matrix_make_named(int TYP, char **names);
57                                  /* stored pointers to symbols */  SEXP check_scalar_string(SEXP sP, char *vals, char *nm);
58                                  /* initialized in R_init_Matrix */  double *packed_to_full(double *dest, const double *src, int n,
59  extern                         enum CBLAS_UPLO uplo);
60    double *full_to_packed(double *dest, const double *src, int n,
61                           enum CBLAS_UPLO uplo, enum CBLAS_DIAG diag);
62    double *packed_getDiag(double *dest, SEXP x);
63    
64    
65    extern   /* stored pointers to symbols initialized in R_init_Matrix */
66  #include "Syms.h"  #include "Syms.h"
67    
68  /* zero an array */  /* zero an array */
69  #define AZERO(x, n) {int _I_, _SZ_ = (n); for(_I_ = 0; _I_ < _SZ_; _I_++) (x)[_I_] = 0;}  #define AZERO(x, n) {int _I_, _SZ_ = (n); for(_I_ = 0; _I_ < _SZ_; _I_++) (x)[_I_] = 0;}
70    
71    /* number of elements in one triangle of a square matrix of order n */
72    #define PACKED_LENGTH(n)   ((n) * ((n) + 1))/2
73    
74    /* duplicate the slot with name given by sym from src to dest */
75    #define slot_dup(dest, src, sym)  SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
76    
77    /**
78     * Check for valid length of a packed triangular array and return the
79     * corresponding number of columns
80     *
81     * @param len length of a packed triangular array
82     *
83     * @return number of columns
84     */
85    static R_INLINE
86    int packed_ncol(int len)
87    {
88        int disc = 8 * len + 1;     /* discriminant */
89        int sqrtd = (int) sqrt((double) disc);
90    
91        if (len < 0 || disc != sqrtd * sqrtd)
92            error(_("invalid 'len' = %d in packed_ncol"));
93        return (sqrtd - 1)/2;
94    }
95    
96  /**  /**
97   * Allocate an SEXP of given type and length, assign it as slot nm in   * Allocate an SEXP of given type and length, assign it as slot nm in
98   * the object, and return the SEXP.  The validity of this function   * the object, and return the SEXP.  The validity of this function
# Line 91  Line 118 
118  }  }
119    
120  /**  /**
121   * Expand the column pointers in the array mp into a full set of column indices   * Expand compressed pointers in the array mp into a full set of indices
122   * in the array mj.   * in the array mj.
123   *   *
124   * @param ncol number of columns   * @param ncol number of columns (or rows)
125   * @param mp column pointer vector of length ncol + 1   * @param mp column pointer vector of length ncol + 1
126   * @param mj vector of length mp[ncol] - 1 to hold the result   * @param mj vector of length mp[ncol] to hold the result
127   *   *
128   * @return mj   * @return mj
129   */   */
130  static R_INLINE  static R_INLINE
131  int* expand_column_pointers(int ncol, const int mp[], int mj[])  int* expand_cmprPt(int ncol, const int mp[], int mj[])
132  {  {
133      int j;      int j;
134      for (j = 0; j < ncol; j++) {      for (j = 0; j < ncol; j++) {
# Line 210  Line 237 
237    
238  void make_array_triangular(double *x, SEXP from);  void make_array_triangular(double *x, SEXP from);
239    
240    SEXP Matrix_expand_pointers(SEXP pP);
241    
242    
243    /**
244     * Elementwise increment dest by src
245     *
246     * @param dest vector to be incremented
247     * @param src vector to be added to dest
248     * @param n length of vectors
249     *
250     * @return dest
251     */
252    static R_INLINE double*
253    vecIncrement(double dest[], const double src[], int n) {
254        int i;
255        for (i = 0; i < n; i++) dest[i] += src[i];
256        return dest;
257    }
258    
259    /**
260     * Elementwise sum of src1 and src2 into dest
261     *
262     * @param dest vector to be incremented
263     * @param src1 vector to be added
264     * @param src1 second vector to be added
265     * @param n length of vectors
266     *
267     * @return dest
268     */
269    static R_INLINE double*
270    vecSum(double dest[], const double src1[], const double src2[],
271           int n) {
272        int i;
273        for (i = 0; i < n; i++) dest[i] = src1[i] + src2[i];
274        return dest;
275    }
276    
277  #ifdef __cplusplus  #ifdef __cplusplus
278  }  }
279  #endif  #endif

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