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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 1736, Tue Jan 23 17:09:41 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    #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    /* FIXME: is not yet used */
83    #define slot_dup(dest, src, sym)  SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
84    
85    #define slot_nonNull_dup(dest, src, sym)                        \
86        if(GET_SLOT(src, sym) != R_NilValue)                        \
87            SET_SLOT(dest, sym, duplicate(GET_SLOT(src, sym)))
88    
89    /* TODO: Make this faster for the case where dimnames = list(NULL,NULL)
90     *       and hence don't have to be set ! */
91    #define SET_DimNames(dest, src) slot_dup(dest, src, Matrix_DimNamesSym)
92    
93    
94    #define uplo_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_uploSym), 0))
95    #define diag_P(_x_) CHAR(STRING_ELT(GET_SLOT(_x_, Matrix_diagSym), 0))
96    #define class_P(_x_) CHAR(asChar(getAttrib(_x_, R_ClassSymbol)))
97    
98    /* should also work for "matrix" matrices: */
99    #define Real_KIND(_x_)  (IS_S4_OBJECT(_x_) ? Real_kind(_x_) : \
100                             (isReal(_x_) ? 0 : (isLogical(_x_) ? 1 : -1)))
101    
102    /* requires 'x' slot: */
103    #define Real_kind(_x_)  (isReal(GET_SLOT(_x_, Matrix_xSym)) ? 0 :       \
104                             (isLogical(GET_SLOT(_x_, Matrix_xSym)) ? 1 : -1))
105    
106    
107    /**
108     * Check for valid length of a packed triangular array and return the
109     * corresponding number of columns
110     *
111     * @param len length of a packed triangular array
112     *
113     * @return number of columns
114     */
115    static R_INLINE
116    int packed_ncol(int len)
117    {
118        int disc = 8 * len + 1;     /* discriminant */
119        int sqrtd = (int) sqrt((double) disc);
120    
121        if (len < 0 || disc != sqrtd * sqrtd)
122            error(_("invalid 'len' = %d in packed_ncol"));
123        return (sqrtd - 1)/2;
124    }
125    
126    /**
127     * Allocate an SEXP of given type and length, assign it as slot nm in
128     * the object, and return the SEXP.  The validity of this function
129     * depends on SET_SLOT not duplicating val when NAMED(val) == 0.  If
130     * this behavior changes then ALLOC_SLOT must use SET_SLOT followed by
131     * GET_SLOT to ensure that the value returned is indeed the SEXP in
132     * the slot.
133     *
134     * @param obj object in which to assign the slot
135     * @param nm name of the slot, as an R name object
136     * @param type type of SEXP to allocate
137     * @param length length of SEXP to allocate
138     *
139     * @return SEXP of given type and length assigned as slot nm in obj
140     */
141    static R_INLINE
142    SEXP ALLOC_SLOT(SEXP obj, SEXP nm, SEXPTYPE type, int length)
143    {
144        SEXP val = allocVector(type, length);
145    
146        SET_SLOT(obj, nm, val);
147        return val;
148    }
149    
150    /**
151     * Expand compressed pointers in the array mp into a full set of indices
152     * in the array mj.
153     *
154     * @param ncol number of columns (or rows)
155     * @param mp column pointer vector of length ncol + 1
156     * @param mj vector of length mp[ncol] to hold the result
157     *
158     * @return mj
159     */
160    static R_INLINE
161    int* expand_cmprPt(int ncol, const int mp[], int mj[])
162    {
163        int j;
164        for (j = 0; j < ncol; j++) {
165            int j2 = mp[j+1], jj;
166            for (jj = mp[j]; jj < j2; jj++) mj[jj] = j;
167        }
168        return mj;
169    }
170    
171    void make_d_matrix_triangular(double *x, SEXP from);
172    void make_i_matrix_triangular(   int *x, SEXP from);
173    
174    void make_d_matrix_symmetric(double *to, SEXP from);
175    void make_i_matrix_symmetric(   int *to, SEXP from);
176    
177    SEXP Matrix_expand_pointers(SEXP pP);
178    
179    SEXP dup_mMatrix_as_dgeMatrix(SEXP A);
180    SEXP dup_mMatrix_as_geMatrix (SEXP A);
181    
182    SEXP new_dgeMatrix(int nrow, int ncol);
183    
184    static R_INLINE SEXP
185    mMatrix_as_dgeMatrix(SEXP A)
186    {
187        return strcmp(class_P(A), "dgeMatrix") ? dup_mMatrix_as_dgeMatrix(A) : A;
188    }
189    
190    static R_INLINE SEXP
191    mMatrix_as_geMatrix(SEXP A)
192    {
193        return strcmp(class_P(A) + 1, "geMatrix") ? dup_mMatrix_as_geMatrix(A) : A;
194    }
195    
196    /**
197     * Return the 0-based index of a string match in a vector of strings
198     * terminated by an empty string.  Returns -1 for no match.
199     *
200     * @param dest class string to match
201     * @param valid vector of possible matches terminated by an empty string
202     *
203     * @return index of match or -1 for no match
204     */
205    static R_INLINE int
206    Matrix_check_class(char *class, char **valid)
207    {
208        int ans;
209        for (ans = 0; ; ans++) {
210            if (!strlen(valid[ans])) return -1;
211            if (!strcmp(class, valid[ans])) return ans;
212        }
213    }
214    
215    #ifdef __cplusplus
216    }
217  #endif  #endif
218    
219    #endif /* MATRIX_MUTILS_H_ */

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