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

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revision 412, Tue Dec 28 15:06:55 2004 UTC revision 1725, Wed Jan 17 08:01:10 2007 UTC
# Line 1  Line 1 
1  #ifndef MATRIX_MUTILS_H  #ifndef MATRIX_MUTILS_H
2  #define MATRIX_MUTILS_H  #define MATRIX_MUTILS_H
3    
4  #include <Rdefines.h>  #ifdef __cplusplus
5  #include <Rconfig.h>  extern "C" {
6    #endif
7    
8    #include <Rdefines.h> /* Rinternals.h + GET_SLOT etc */
9    #include <R.h>  /* includes Rconfig.h */
10    
11    #ifdef ENABLE_NLS
12    #include <libintl.h>
13    #define _(String) dgettext ("Matrix", String)
14    #else
15    #define _(String) (String)
16    #endif
17    
18    SEXP triangularMatrix_validate(SEXP obj);
19    SEXP symmetricMatrix_validate(SEXP obj);
20    SEXP dense_nonpacked_validate(SEXP obj);
21    
22    /* enum constants from cblas.h and some short forms */
23    enum CBLAS_ORDER {CblasRowMajor=101, CblasColMajor=102};
24    enum CBLAS_TRANSPOSE {CblasNoTrans=111, CblasTrans=112, CblasConjTrans=113};
25    enum CBLAS_UPLO {CblasUpper=121, CblasLower=122};
26    enum CBLAS_DIAG {CblasNonUnit=131, CblasUnit=132};
27    enum CBLAS_SIDE {CblasLeft=141, CblasRight=142};
28    #define RMJ CblasRowMajor
29    #define CMJ CblasColMajor
30    #define NTR CblasNoTrans
31    #define TRN CblasTrans
32    #define CTR CblasConjTrans
33    #define UPP CblasUpper
34    #define LOW CblasLower
35    #define NUN CblasNonUnit
36    #define UNT CblasUnit
37    #define LFT CblasLeft
38    #define RGT CblasRight
39    
40  char norm_type(char *typstr);  char norm_type(char *typstr);
41  char rcond_type(char *typstr);  char rcond_type(char *typstr);
42  double get_double_by_name(SEXP obj, char *nm);  double get_double_by_name(SEXP obj, char *nm);
43  SEXP set_double_by_name(SEXP obj, double val, char *nm);  SEXP set_double_by_name(SEXP obj, double val, char *nm);
44  SEXP as_det_obj(double val, int log, int sign);  SEXP as_det_obj(double val, int log, int sign);
45  SEXP get_factorization(SEXP obj, char *nm);  SEXP get_factors(SEXP obj, char *nm);
46  SEXP set_factorization(SEXP obj, SEXP val, char *nm);  SEXP set_factors(SEXP obj, SEXP val, char *nm);
47  SEXP cscMatrix_set_Dim(SEXP x, int nrow);  SEXP dgCMatrix_set_Dim(SEXP x, int nrow);
48  int csc_unsorted_columns(int ncol, const int p[], const int i[]);  
49  void csc_sort_columns(int ncol, const int p[], int i[], double x[]);  /* int csc_unsorted_columns(int ncol, const int p[], const int i[]); */
50  SEXP triple_as_SEXP(int nrow, int ncol, int nz,  /* void csc_sort_columns(int ncol, const int p[], int i[], double x[]); */
51                      const int Ti [], const int Tj [], const double Tx [],  /* SEXP csc_check_column_sorting(SEXP A); */
52                      char *Rclass);  SEXP Matrix_make_named(int TYP, char **names);
53  SEXP csc_check_column_sorting(SEXP A);  SEXP check_scalar_string(SEXP sP, char *vals, char *nm);
54  void csc_components_transpose(int m, int n, int nnz,  double *packed_getDiag(double *dest, SEXP x);
55                                const int xp[], const int xi[],  SEXP Matrix_getElement(SEXP list, char *nm);
56                                const double xx[],  
57                                int ap[], int ai[], double ax[]);  #define PACKED_TO_FULL(TYPE)                                            \
58  void ssc_symbolic_permute(int n, int upper, const int perm[],  TYPE *packed_to_full_ ## TYPE(TYPE *dest, const TYPE *src,              \
59                            int Ap[], int Ai[]);                               int n, enum CBLAS_UPLO uplo)
60  double *nlme_symmetrize(double *a, const int nc);  PACKED_TO_FULL(double);
61  void nlme_check_Lapack_error(int info, const char *laName);  PACKED_TO_FULL(int);
62  SEXP nlme_replaceSlot(SEXP obj, SEXP names, SEXP value);  #undef PACKED_TO_FULL
63  SEXP nlme_weight_matrix_list(SEXP MLin, SEXP wts, SEXP adjst, SEXP MLout);  
64    #define FULL_TO_PACKED(TYPE)                                            \
65                                  /* stored pointers to symbols */  TYPE *full_to_packed_ ## TYPE(TYPE *dest, const TYPE *src, int n,       \
66                                  /* initialized in R_init_Matrix */                                enum CBLAS_UPLO uplo, enum CBLAS_DIAG diag)
67  extern  FULL_TO_PACKED(double);
68    FULL_TO_PACKED(int);
69    #undef FULL_TO_PACKED
70    
71    
72    extern   /* stored pointers to symbols initialized in R_init_Matrix */
73  #include "Syms.h"  #include "Syms.h"
74    
75    /* zero an array */
76    #define AZERO(x, n) {int _I_, _SZ_ = (n); for(_I_ = 0; _I_ < _SZ_; _I_++) (x)[_I_] = 0;}
77    
78    /* number of elements in one triangle of a square matrix of order n */
79    #define PACKED_LENGTH(n)   ((n) * ((n) + 1))/2
80    
81    /* duplicate the slot with name given by sym from src to dest */
82    #define slot_dup(dest, src, sym)  SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
83    
84    #define uplo_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_uploSym), 0))
85    #define diag_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_diagSym), 0))
86    #define class_P(_x_) CHAR(asChar(getAttrib(_x_, R_ClassSymbol)))
87    
88    /* should also work for "matrix" matrices: */
89    #define Real_KIND(_x_)  (IS_S4_OBJECT(_x_) ? Real_kind(_x_) : \
90                             (isReal(_x_) ? 0 : (isLogical(_x_) ? 1 : -1)))
91    
92    /* requires 'x' slot: */
93    #define Real_kind(_x_)  (isReal(GET_SLOT(_x_, Matrix_xSym)) ? 0 :       \
94                             (isLogical(GET_SLOT(_x_, Matrix_xSym)) ? 1 : -1))
95    
96    
97    /**
98     * Check for valid length of a packed triangular array and return the
99     * corresponding number of columns
100     *
101     * @param len length of a packed triangular array
102     *
103     * @return number of columns
104     */
105    static R_INLINE
106    int packed_ncol(int len)
107    {
108        int disc = 8 * len + 1;     /* discriminant */
109        int sqrtd = (int) sqrt((double) disc);
110    
111        if (len < 0 || disc != sqrtd * sqrtd)
112            error(_("invalid 'len' = %d in packed_ncol"));
113        return (sqrtd - 1)/2;
114    }
115    
116    /**
117     * Allocate an SEXP of given type and length, assign it as slot nm in
118     * the object, and return the SEXP.  The validity of this function
119     * depends on SET_SLOT not duplicating val when NAMED(val) == 0.  If
120     * this behavior changes then ALLOC_SLOT must use SET_SLOT followed by
121     * GET_SLOT to ensure that the value returned is indeed the SEXP in
122     * the slot.
123     *
124     * @param obj object in which to assign the slot
125     * @param nm name of the slot, as an R name object
126     * @param type type of SEXP to allocate
127     * @param length length of SEXP to allocate
128     *
129     * @return SEXP of given type and length assigned as slot nm in obj
130     */
131    static R_INLINE
132    SEXP ALLOC_SLOT(SEXP obj, SEXP nm, SEXPTYPE type, int length)
133    {
134        SEXP val = allocVector(type, length);
135    
136        SET_SLOT(obj, nm, val);
137        return val;
138    }
139    
140    /**
141     * Expand compressed pointers in the array mp into a full set of indices
142     * in the array mj.
143     *
144     * @param ncol number of columns (or rows)
145     * @param mp column pointer vector of length ncol + 1
146     * @param mj vector of length mp[ncol] to hold the result
147     *
148     * @return mj
149     */
150    static R_INLINE
151    int* expand_cmprPt(int ncol, const int mp[], int mj[])
152    {
153        int j;
154        for (j = 0; j < ncol; j++) {
155            int j2 = mp[j+1], jj;
156            for (jj = mp[j]; jj < j2; jj++) mj[jj] = j;
157        }
158        return mj;
159    }
160    
161    void make_d_matrix_triangular(double *x, SEXP from);
162    void make_i_matrix_triangular(   int *x, SEXP from);
163    
164    void make_d_matrix_symmetric(double *to, SEXP from);
165    void make_i_matrix_symmetric(   int *to, SEXP from);
166    
167    SEXP Matrix_expand_pointers(SEXP pP);
168    
169    SEXP dup_mMatrix_as_dgeMatrix(SEXP A);
170    SEXP dup_mMatrix_as_geMatrix (SEXP A);
171    
172    SEXP new_dgeMatrix(int nrow, int ncol);
173    
174    static R_INLINE SEXP
175    mMatrix_as_dgeMatrix(SEXP A)
176    {
177        return strcmp(class_P(A), "dgeMatrix") ? dup_mMatrix_as_dgeMatrix(A) : A;
178    }
179    
180    static R_INLINE SEXP
181    mMatrix_as_geMatrix(SEXP A)
182    {
183        return strcmp(class_P(A) + 1, "geMatrix") ? dup_mMatrix_as_geMatrix(A) : A;
184    }
185    
186    /**
187     * Return the 0-based index of a string match in a vector of strings
188     * terminated by an empty string.  Returns -1 for no match.
189     *
190     * @param dest class string to match
191     * @param valid vector of possible matches terminated by an empty string
192     *
193     * @return index of match or -1 for no match
194     */
195    static R_INLINE int
196    Matrix_check_class(char *class, char **valid)
197    {
198        int ans;
199        for (ans = 0; ; ans++) {
200            if (!strlen(valid[ans])) return -1;
201            if (!strcmp(class, valid[ans])) return ans;
202        }
203    }
204    
205    #ifdef __cplusplus
206    }
207  #endif  #endif
208    
209    #endif /* MATRIX_MUTILS_H_ */

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