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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 441, Wed Jan 19 11:22:07 2005 UTC revision 1960, Fri Jul 6 16:54:43 2007 UTC
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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  #include "cblas.h"  #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    #define Alloca(n, t)   (t *) alloca( (size_t) ( (n) * sizeof(t) ) )
19    
20  char norm_type(char *typstr);  SEXP triangularMatrix_validate(SEXP obj);
21  char rcond_type(char *typstr);  SEXP symmetricMatrix_validate(SEXP obj);
22    SEXP dense_nonpacked_validate(SEXP obj);
23    
24    /* enum constants from cblas.h and some short forms */
25    enum CBLAS_ORDER {CblasRowMajor=101, CblasColMajor=102};
26    enum CBLAS_TRANSPOSE {CblasNoTrans=111, CblasTrans=112, CblasConjTrans=113};
27    enum CBLAS_UPLO {CblasUpper=121, CblasLower=122};
28    enum CBLAS_DIAG {CblasNonUnit=131, CblasUnit=132};
29    enum CBLAS_SIDE {CblasLeft=141, CblasRight=142};
30    #define RMJ CblasRowMajor
31    #define CMJ CblasColMajor
32    #define NTR CblasNoTrans
33    #define TRN CblasTrans
34    #define CTR CblasConjTrans
35    #define UPP CblasUpper
36    #define LOW CblasLower
37    #define NUN CblasNonUnit
38    #define UNT CblasUnit
39    #define LFT CblasLeft
40    #define RGT CblasRight
41    
42    char norm_type(const char *typstr);
43    char rcond_type(const char *typstr);
44  double get_double_by_name(SEXP obj, char *nm);  double get_double_by_name(SEXP obj, char *nm);
45  SEXP set_double_by_name(SEXP obj, double val, char *nm);  SEXP set_double_by_name(SEXP obj, double val, char *nm);
46  SEXP as_det_obj(double val, int log, int sign);  SEXP as_det_obj(double val, int log, int sign);
47  SEXP get_factorization(SEXP obj, char *nm);  SEXP get_factors(SEXP obj, char *nm);
48  SEXP set_factorization(SEXP obj, SEXP val, char *nm);  SEXP set_factors(SEXP obj, SEXP val, char *nm);
49  SEXP cscMatrix_set_Dim(SEXP x, int nrow);  SEXP dgCMatrix_set_Dim(SEXP x, int nrow);
50  int csc_unsorted_columns(int ncol, const int p[], const int i[]);  
51  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[]); */
52  SEXP triple_as_SEXP(int nrow, int ncol, int nz,  /* void csc_sort_columns(int ncol, const int p[], int i[], double x[]); */
53                      const int Ti [], const int Tj [], const double Tx [],  /* SEXP csc_check_column_sorting(SEXP A); */
54                      char *Rclass);  SEXP Matrix_make_named(int TYP, char **names);
55  SEXP csc_check_column_sorting(SEXP A);  SEXP check_scalar_string(SEXP sP, char *vals, char *nm);
56  void csc_components_transpose(int m, int n, int nnz,  void d_packed_getDiag(double *dest, SEXP x, int n);
57                                const int xp[], const int xi[],  void l_packed_getDiag(   int *dest, SEXP x, int n);
58                                const double xx[],  void tr_d_packed_getDiag(double *dest, SEXP x);
59                                int ap[], int ai[], double ax[]);  void tr_l_packed_getDiag(   int *dest, SEXP x);
60  void ssc_symbolic_permute(int n, int upper, const int perm[],  
61                            int Ap[], int Ai[]);  SEXP Matrix_getElement(SEXP list, char *nm);
62  double *nlme_symmetrize(double *a, const int nc);  
63  void nlme_check_Lapack_error(int info, const char *laName);  #define PACKED_TO_FULL(TYPE)                                            \
64  SEXP nlme_replaceSlot(SEXP obj, SEXP names, SEXP value);  TYPE *packed_to_full_ ## TYPE(TYPE *dest, const TYPE *src,              \
65  SEXP nlme_weight_matrix_list(SEXP MLin, SEXP wts, SEXP adjst, SEXP MLout);                               int n, enum CBLAS_UPLO uplo)
66    PACKED_TO_FULL(double);
67                                  /* stored pointers to symbols */  PACKED_TO_FULL(int);
68                                  /* initialized in R_init_Matrix */  #undef PACKED_TO_FULL
69  extern  
70    #define FULL_TO_PACKED(TYPE)                                            \
71    TYPE *full_to_packed_ ## TYPE(TYPE *dest, const TYPE *src, int n,       \
72                                  enum CBLAS_UPLO uplo, enum CBLAS_DIAG diag)
73    FULL_TO_PACKED(double);
74    FULL_TO_PACKED(int);
75    #undef FULL_TO_PACKED
76    
77    
78    extern   /* stored pointers to symbols initialized in R_init_Matrix */
79  #include "Syms.h"  #include "Syms.h"
80    
81  /* zero an array */  /* zero an array */
82  #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;}
83    
84    /* number of elements in one triangle of a square matrix of order n */
85    #define PACKED_LENGTH(n)   ((n) * ((n) + 1))/2
86    
87    /* duplicate the slot with name given by sym from src to dest */
88    /* FIXME: is not yet used */
89    #define slot_dup(dest, src, sym)  SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
90    
91    #define slot_nonNull_dup(dest, src, sym)                        \
92        if(GET_SLOT(src, sym) != R_NilValue)                        \
93            SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
94    
95    /* TODO: Make this faster for the case where dimnames = list(NULL,NULL)
96     *       and hence don't have to be set ! */
97    #define SET_DimNames(dest, src) slot_dup(dest, src, Matrix_DimNamesSym)
98    
99    
100    #define uplo_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_uploSym), 0))
101    #define diag_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_diagSym), 0))
102    #define class_P(_x_) CHAR(asChar(getAttrib(_x_, R_ClassSymbol)))
103    
104    /* should also work for "matrix" matrices: */
105    #define Real_KIND(_x_)  (IS_S4_OBJECT(_x_) ? Real_kind(_x_) : \
106                             (isReal(_x_) ? 0 : (isLogical(_x_) ? 1 : -1)))
107    
108    /* requires 'x' slot: */
109    #define Real_kind(_x_)  (isReal(GET_SLOT(_x_, Matrix_xSym)) ? 0 :       \
110                             (isLogical(GET_SLOT(_x_, Matrix_xSym)) ? 1 : -1))
111    
112    
113    /**
114     * Check for valid length of a packed triangular array and return the
115     * corresponding number of columns
116     *
117     * @param len length of a packed triangular array
118     *
119     * @return number of columns
120     */
121    static R_INLINE
122    int packed_ncol(int len)
123    {
124        int disc = 8 * len + 1;     /* discriminant */
125        int sqrtd = (int) sqrt((double) disc);
126    
127        if (len < 0 || disc != sqrtd * sqrtd)
128            error(_("invalid 'len' = %d in packed_ncol"));
129        return (sqrtd - 1)/2;
130    }
131    
132    /**
133     * Allocate an SEXP of given type and length, assign it as slot nm in
134     * the object, and return the SEXP.  The validity of this function
135     * depends on SET_SLOT not duplicating val when NAMED(val) == 0.  If
136     * this behavior changes then ALLOC_SLOT must use SET_SLOT followed by
137     * GET_SLOT to ensure that the value returned is indeed the SEXP in
138     * the slot.
139     * NOTE:  GET_SLOT(x, what)        :== R_do_slot       (x, what)
140     * ----   SET_SLOT(x, what, value) :== R_do_slot_assign(x, what, value)
141     * and the R_do_slot* are in src/main/attrib.c
142     *
143     * @param obj object in which to assign the slot
144     * @param nm name of the slot, as an R name object
145     * @param type type of SEXP to allocate
146     * @param length length of SEXP to allocate
147     *
148     * @return SEXP of given type and length assigned as slot nm in obj
149     */
150    static R_INLINE
151    SEXP ALLOC_SLOT(SEXP obj, SEXP nm, SEXPTYPE type, int length)
152    {
153        SEXP val = allocVector(type, length);
154    
155        SET_SLOT(obj, nm, val);
156        return val;
157    }
158    
159    /**
160     * Expand compressed pointers in the array mp into a full set of indices
161     * in the array mj.
162     *
163     * @param ncol number of columns (or rows)
164     * @param mp column pointer vector of length ncol + 1
165     * @param mj vector of length mp[ncol] to hold the result
166     *
167     * @return mj
168     */
169    static R_INLINE
170    int* expand_cmprPt(int ncol, const int mp[], int mj[])
171    {
172        int j;
173        for (j = 0; j < ncol; j++) {
174            int j2 = mp[j+1], jj;
175            for (jj = mp[j]; jj < j2; jj++) mj[jj] = j;
176        }
177        return mj;
178    }
179    
180    void make_d_matrix_triangular(double *x, SEXP from);
181    void make_i_matrix_triangular(   int *x, SEXP from);
182    
183    void make_d_matrix_symmetric(double *to, SEXP from);
184    void make_i_matrix_symmetric(   int *to, SEXP from);
185    
186    SEXP Matrix_expand_pointers(SEXP pP);
187    
188    SEXP dup_mMatrix_as_dgeMatrix(SEXP A);
189    SEXP dup_mMatrix_as_geMatrix (SEXP A);
190    
191    SEXP new_dgeMatrix(int nrow, int ncol);
192    
193    static R_INLINE SEXP
194    mMatrix_as_dgeMatrix(SEXP A)
195    {
196        return strcmp(class_P(A), "dgeMatrix") ? dup_mMatrix_as_dgeMatrix(A) : A;
197    }
198    
199    static R_INLINE SEXP
200    mMatrix_as_geMatrix(SEXP A)
201    {
202        return strcmp(class_P(A) + 1, "geMatrix") ? dup_mMatrix_as_geMatrix(A) : A;
203    }
204    
205    /**
206     * Return the 0-based index of a string match in a vector of strings
207     * terminated by an empty string.  Returns -1 for no match.
208     *
209     * @param dest class string to match
210     * @param valid vector of possible matches terminated by an empty string
211     *
212     * @return index of match or -1 for no match
213     */
214    static R_INLINE int
215    Matrix_check_class(const char *class, char **valid)
216    {
217        int ans;
218        for (ans = 0; ; ans++) {
219            if (!strlen(valid[ans])) return -1;
220            if (!strcmp(class, valid[ans])) return ans;
221        }
222    }
223    
224    #ifdef __cplusplus
225    }
226  #endif  #endif
227    
228    #endif /* MATRIX_MUTILS_H_ */

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