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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 2049, Tue Aug 14 22:22:24 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 <ctype.h>
9    #include <R.h>  /* includes Rconfig.h */
10    #include <Rdefines.h> /* Rinternals.h + GET_SLOT etc */
11    
12    #ifdef ENABLE_NLS
13    #include <libintl.h>
14    #define _(String) dgettext ("Matrix", String)
15    #else
16    #define _(String) (String)
17    #endif
18    
19    #ifdef __GNUC__
20    # undef alloca
21    # define alloca(x) __builtin_alloca((x))
22    #endif
23    
24    #define Alloca(n, t)   (t *) alloca( (size_t) ( (n) * sizeof(t) ) )
25    
26    SEXP triangularMatrix_validate(SEXP obj);
27    SEXP symmetricMatrix_validate(SEXP obj);
28    SEXP dense_nonpacked_validate(SEXP obj);
29    
30  char norm_type(char *typstr);  /* enum constants from cblas.h and some short forms */
31  char rcond_type(char *typstr);  enum CBLAS_ORDER {CblasRowMajor=101, CblasColMajor=102};
32    enum CBLAS_TRANSPOSE {CblasNoTrans=111, CblasTrans=112, CblasConjTrans=113};
33    enum CBLAS_UPLO {CblasUpper=121, CblasLower=122};
34    enum CBLAS_DIAG {CblasNonUnit=131, CblasUnit=132};
35    enum CBLAS_SIDE {CblasLeft=141, CblasRight=142};
36    #define RMJ CblasRowMajor
37    #define CMJ CblasColMajor
38    #define NTR CblasNoTrans
39    #define TRN CblasTrans
40    #define CTR CblasConjTrans
41    #define UPP CblasUpper
42    #define LOW CblasLower
43    #define NUN CblasNonUnit
44    #define UNT CblasUnit
45    #define LFT CblasLeft
46    #define RGT CblasRight
47    
48    char norm_type(const char *typstr);
49    char rcond_type(const char *typstr);
50  double get_double_by_name(SEXP obj, char *nm);  double get_double_by_name(SEXP obj, char *nm);
51  SEXP set_double_by_name(SEXP obj, double val, char *nm);  SEXP set_double_by_name(SEXP obj, double val, char *nm);
52  SEXP as_det_obj(double val, int log, int sign);  SEXP as_det_obj(double val, int log, int sign);
53  SEXP get_factorization(SEXP obj, char *nm);  SEXP get_factors(SEXP obj, char *nm);
54  SEXP set_factorization(SEXP obj, SEXP val, char *nm);  SEXP set_factors(SEXP obj, SEXP val, char *nm);
55  SEXP cscMatrix_set_Dim(SEXP x, int nrow);  SEXP dgCMatrix_set_Dim(SEXP x, int nrow);
56  int csc_unsorted_columns(int ncol, const int p[], const int i[]);  
57  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[]); */
58  SEXP triple_as_SEXP(int nrow, int ncol, int nz,  /* void csc_sort_columns(int ncol, const int p[], int i[], double x[]); */
59                      const int Ti [], const int Tj [], const double Tx [],  /* SEXP csc_check_column_sorting(SEXP A); */
60                      char *Rclass);  SEXP Matrix_make_named(int TYP, char **names);
61  SEXP csc_check_column_sorting(SEXP A);  SEXP check_scalar_string(SEXP sP, char *vals, char *nm);
62  void csc_components_transpose(int m, int n, int nnz,  void d_packed_getDiag(double *dest, SEXP x, int n);
63                                const int xp[], const int xi[],  void l_packed_getDiag(   int *dest, SEXP x, int n);
64                                const double xx[],  void tr_d_packed_getDiag(double *dest, SEXP x);
65                                int ap[], int ai[], double ax[]);  void tr_l_packed_getDiag(   int *dest, SEXP x);
66  void ssc_symbolic_permute(int n, int upper, const int perm[],  
67                            int Ap[], int Ai[]);  SEXP Matrix_getElement(SEXP list, char *nm);
68  double *nlme_symmetrize(double *a, const int nc);  
69  void nlme_check_Lapack_error(int info, const char *laName);  #define PACKED_TO_FULL(TYPE)                                            \
70  SEXP nlme_replaceSlot(SEXP obj, SEXP names, SEXP value);  TYPE *packed_to_full_ ## TYPE(TYPE *dest, const TYPE *src,              \
71  SEXP nlme_weight_matrix_list(SEXP MLin, SEXP wts, SEXP adjst, SEXP MLout);                               int n, enum CBLAS_UPLO uplo)
72    PACKED_TO_FULL(double);
73                                  /* stored pointers to symbols */  PACKED_TO_FULL(int);
74                                  /* initialized in R_init_Matrix */  #undef PACKED_TO_FULL
75  extern  
76    #define FULL_TO_PACKED(TYPE)                                            \
77    TYPE *full_to_packed_ ## TYPE(TYPE *dest, const TYPE *src, int n,       \
78                                  enum CBLAS_UPLO uplo, enum CBLAS_DIAG diag)
79    FULL_TO_PACKED(double);
80    FULL_TO_PACKED(int);
81    #undef FULL_TO_PACKED
82    
83    
84    extern   /* stored pointers to symbols initialized in R_init_Matrix */
85  #include "Syms.h"  #include "Syms.h"
86    
87    /* zero an array */
88    #define AZERO(x, n) {int _I_, _SZ_ = (n); for(_I_ = 0; _I_ < _SZ_; _I_++) (x)[_I_] = 0;}
89    
90    /* number of elements in one triangle of a square matrix of order n */
91    #define PACKED_LENGTH(n)   ((n) * ((n) + 1))/2
92    
93    /* duplicate the slot with name given by sym from src to dest */
94    /* FIXME: is not yet used */
95    #define slot_dup(dest, src, sym)  SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
96    
97    #define slot_nonNull_dup(dest, src, sym)                        \
98        if(GET_SLOT(src, sym) != R_NilValue)                        \
99            SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
100    
101    /* TODO: Make this faster for the case where dimnames = list(NULL,NULL)
102     *       and hence don't have to be set ! */
103    #define SET_DimNames(dest, src) slot_dup(dest, src, Matrix_DimNamesSym)
104    
105    
106    #define uplo_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_uploSym), 0))
107    #define diag_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_diagSym), 0))
108    #define class_P(_x_) CHAR(asChar(getAttrib(_x_, R_ClassSymbol)))
109    
110    /* should also work for "matrix" matrices: */
111    #define Real_KIND(_x_)  (IS_S4_OBJECT(_x_) ? Real_kind(_x_) : \
112                             (isReal(_x_) ? 0 : (isLogical(_x_) ? 1 : -1)))
113    
114    /* requires 'x' slot: */
115    #define Real_kind(_x_)  (isReal(GET_SLOT(_x_, Matrix_xSym)) ? 0 :       \
116                             (isLogical(GET_SLOT(_x_, Matrix_xSym)) ? 1 : -1))
117    
118    
119    /**
120     * Check for valid length of a packed triangular array and return the
121     * corresponding number of columns
122     *
123     * @param len length of a packed triangular array
124     *
125     * @return number of columns
126     */
127    static R_INLINE
128    int packed_ncol(int len)
129    {
130        int disc = 8 * len + 1;     /* discriminant */
131        int sqrtd = (int) sqrt((double) disc);
132    
133        if (len < 0 || disc != sqrtd * sqrtd)
134            error(_("invalid 'len' = %d in packed_ncol"));
135        return (sqrtd - 1)/2;
136    }
137    
138    /**
139     * Allocate an SEXP of given type and length, assign it as slot nm in
140     * the object, and return the SEXP.  The validity of this function
141     * depends on SET_SLOT not duplicating val when NAMED(val) == 0.  If
142     * this behavior changes then ALLOC_SLOT must use SET_SLOT followed by
143     * GET_SLOT to ensure that the value returned is indeed the SEXP in
144     * the slot.
145     * NOTE:  GET_SLOT(x, what)        :== R_do_slot       (x, what)
146     * ----   SET_SLOT(x, what, value) :== R_do_slot_assign(x, what, value)
147     * and the R_do_slot* are in src/main/attrib.c
148     *
149     * @param obj object in which to assign the slot
150     * @param nm name of the slot, as an R name object
151     * @param type type of SEXP to allocate
152     * @param length length of SEXP to allocate
153     *
154     * @return SEXP of given type and length assigned as slot nm in obj
155     */
156    static R_INLINE
157    SEXP ALLOC_SLOT(SEXP obj, SEXP nm, SEXPTYPE type, int length)
158    {
159        SEXP val = allocVector(type, length);
160    
161        SET_SLOT(obj, nm, val);
162        return val;
163    }
164    
165    /**
166     * Expand compressed pointers in the array mp into a full set of indices
167     * in the array mj.
168     *
169     * @param ncol number of columns (or rows)
170     * @param mp column pointer vector of length ncol + 1
171     * @param mj vector of length mp[ncol] to hold the result
172     *
173     * @return mj
174     */
175    static R_INLINE
176    int* expand_cmprPt(int ncol, const int mp[], int mj[])
177    {
178        int j;
179        for (j = 0; j < ncol; j++) {
180            int j2 = mp[j+1], jj;
181            for (jj = mp[j]; jj < j2; jj++) mj[jj] = j;
182        }
183        return mj;
184    }
185    
186    void make_d_matrix_triangular(double *x, SEXP from);
187    void make_i_matrix_triangular(   int *x, SEXP from);
188    
189    void make_d_matrix_symmetric(double *to, SEXP from);
190    void make_i_matrix_symmetric(   int *to, SEXP from);
191    
192    SEXP Matrix_expand_pointers(SEXP pP);
193    
194    SEXP dup_mMatrix_as_dgeMatrix(SEXP A);
195    SEXP dup_mMatrix_as_geMatrix (SEXP A);
196    
197    SEXP new_dgeMatrix(int nrow, int ncol);
198    
199    static R_INLINE SEXP
200    mMatrix_as_dgeMatrix(SEXP A)
201    {
202        return strcmp(class_P(A), "dgeMatrix") ? dup_mMatrix_as_dgeMatrix(A) : A;
203    }
204    
205    static R_INLINE SEXP
206    mMatrix_as_geMatrix(SEXP A)
207    {
208        return strcmp(class_P(A) + 1, "geMatrix") ? dup_mMatrix_as_geMatrix(A) : A;
209    }
210    
211    /**
212     * Return the 0-based index of a string match in a vector of strings
213     * terminated by an empty string.  Returns -1 for no match.
214     *
215     * @param dest class string to match
216     * @param valid vector of possible matches terminated by an empty string
217     *
218     * @return index of match or -1 for no match
219     */
220    static R_INLINE int
221    Matrix_check_class(const char *class, char **valid)
222    {
223        int ans;
224        for (ans = 0; ; ans++) {
225            if (!strlen(valid[ans])) return -1;
226            if (!strcmp(class, valid[ans])) return ans;
227        }
228    }
229    
230    #ifdef __cplusplus
231    }
232  #endif  #endif
233    
234    #endif /* MATRIX_MUTILS_H_ */

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