SCM

SCM Repository

[matrix] Annotation of /pkg/Matrix/R/ddenseMatrix.R
ViewVC logotype

Annotation of /pkg/Matrix/R/ddenseMatrix.R

Parent Directory Parent Directory | Revision Log Revision Log


Revision 3092 - (view) (download)

1 : bates 686 ### Define Methods that can be inherited for all subclasses
2 :    
3 : maechler 1447 ## This replaces many "d..Matrix" -> "dgeMatrix" ones
4 :     ## >> but << needs all sub(sub(sub)) classes of "ddenseMatrix" listed
5 :     ## ----- in ../src/Mutils.c
6 : bates 1460
7 : mmaechler 3092 setAs("ddenseMatrix", "dgeMatrix", ..2dge)
8 : maechler 1575
9 : mmaechler 2199 setAs("ddenseMatrix", "matrix",
10 : mmaechler 3092 function(from) as(..2dge(from), "matrix"))
11 : maechler 2112
12 : maechler 1447 ## d(ouble) to l(ogical):
13 : maechler 1747 setAs("dgeMatrix", "lgeMatrix", function(from) d2l_Matrix(from, "dgeMatrix"))
14 :     setAs("dsyMatrix", "lsyMatrix", function(from) d2l_Matrix(from, "dsyMatrix"))
15 :     setAs("dspMatrix", "lspMatrix", function(from) d2l_Matrix(from, "dspMatrix"))
16 :     setAs("dtrMatrix", "ltrMatrix", function(from) d2l_Matrix(from, "dtrMatrix"))
17 :     setAs("dtpMatrix", "ltpMatrix", function(from) d2l_Matrix(from, "dtpMatrix"))
18 : maechler 956
19 : mmaechler 2551 if(FALSE) ## FIXME, this fails for ("dtpMatrix" -> "CsparseMatrix") where .dense2C() works
20 : bates 1460 setAs("ddenseMatrix", "CsparseMatrix",
21 :     function(from) {
22 : maechler 1799 if (class(from) != "dgeMatrix") # don't lose symmetry/triangularity/...
23 :     as_Csparse(from)
24 :     else .Call(dense_to_Csparse, from)
25 : bates 1460 })
26 :    
27 :     ## special case
28 :     setAs("dgeMatrix", "dgCMatrix",
29 :     function(from) .Call(dense_to_Csparse, from))
30 :    
31 :     setAs("matrix", "CsparseMatrix",
32 : maechler 2115 function(from) .Call(dense_to_Csparse, from))
33 : bates 1460
34 : mmaechler 3018 ## for historical i.e. backcompatibility reasons ..
35 : bates 1460 setAs("matrix", "dgCMatrix",
36 :     function(from) {
37 :     storage.mode(from) <- "double"
38 :     .Call(dense_to_Csparse, from)
39 :     })
40 :    
41 :     setAs("numeric", "CsparseMatrix",
42 :     function(from)
43 :     .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from)))
44 :    
45 : mmaechler 3079 setMethod("as.numeric", "ddenseMatrix", function(x, ...) ..2dge(x)@x)
46 : maechler 1391
47 : maechler 792 ## -- see also ./Matrix.R e.g., for a show() method
48 :    
49 : bates 686 ## These methods are the 'fallback' methods for all dense numeric
50 : maechler 792 ## matrices in that they simply coerce the ddenseMatrix to a
51 :     ## dgeMatrix. Methods for special forms override these.
52 : bates 686
53 :     setMethod("norm", signature(x = "ddenseMatrix", type = "missing"),
54 : mmaechler 3079 function(x, type, ...) norm(..2dge(x)))
55 : bates 686
56 :     setMethod("norm", signature(x = "ddenseMatrix", type = "character"),
57 : mmaechler 3079 function(x, type, ...) norm(..2dge(x), type))
58 : bates 686
59 : maechler 2158 setMethod("rcond", signature(x = "ddenseMatrix", norm = "missing"),
60 : mmaechler 3079 function(x, norm, ...) rcond(..2dge(x), ...))
61 : bates 686
62 : maechler 2158 setMethod("rcond", signature(x = "ddenseMatrix", norm = "character"),
63 : mmaechler 3079 function(x, norm, ...) rcond(..2dge(x), norm, ...))
64 : bates 686
65 : maechler 946 ## Not really useful; now require *identical* class for result:
66 :     ## setMethod("t", signature(x = "ddenseMatrix"),
67 : mmaechler 3079 ## function(x) callGeneric(..2dge(x)))
68 : bates 686
69 : mmaechler 2811 ## "diag" --> specific methods for dge, dtr,dtp, dsy,dsp
70 : bates 686
71 : maechler 1945 setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),
72 : mmaechler 3079 function(a, b, ...) solve(..2dge(a)))
73 : bates 686
74 : mmaechler 2472 for(.b in c("Matrix","ANY")) ## << against ambiguity notes
75 :     setMethod("solve", signature(a = "ddenseMatrix", b = .b),
76 : mmaechler 3079 function(a, b, ...) solve(..2dge(a), b))
77 : mmaechler 2472 for(.b in c("matrix","numeric")) ## << against ambiguity notes
78 :     setMethod("solve", signature(a = "ddenseMatrix", b = .b),
79 : mmaechler 3079 function(a, b, ...) solve(..2dge(a), Matrix(b)))
80 : mmaechler 2898 rm(.b)
81 : bates 686
82 :     setMethod("lu", signature(x = "ddenseMatrix"),
83 : mmaechler 2898 function(x, ...)
84 : mmaechler 3079 .set.factors(x, "LU", lu(..2dge(x), ...)))
85 : bates 686
86 : maechler 2154 setMethod("chol", signature(x = "ddenseMatrix"), cholMat)
87 : maechler 1654
88 : maechler 856 setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "missing"),
89 : mmaechler 3079 function(x, logarithm, ...) determinant(..2dge(x)))
90 : bates 686
91 : maechler 856 setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "logical"),
92 : maechler 2123 function(x, logarithm, ...)
93 : mmaechler 3079 determinant(..2dge(x), logarithm))
94 : bates 686
95 : maechler 954 ## now done for "dMatrix":
96 :     ## setMethod("expm", signature(x = "ddenseMatrix"),
97 : mmaechler 3079 ## function(x) callGeneric(..2dge(x)))
98 : bates 686
99 : maechler 1331
100 : maechler 2112 .trilDense <- function(x, k = 0, ...) {
101 :     k <- as.integer(k[1])
102 : maechler 2115 d <- dim(x)
103 :     stopifnot(-d[1] <= k, k <= d[1]) # had k <= 0
104 : maechler 2112 ## returns "lower triangular" if k <= 0 && sqr
105 : maechler 2115 .Call(dense_band, x, -d[1], k)
106 : maechler 2112 }
107 : bates 1453 ## NB: have extra tril(), triu() methods for symmetric ["dsy" and "dsp"] and
108 :     ## for triangular ["dtr" and "dtp"]
109 : maechler 2115 setMethod("tril", "denseMatrix", .trilDense)
110 :     setMethod("tril", "matrix", .trilDense)
111 : bates 1453
112 : maechler 2112 .triuDense <- function(x, k = 0, ...) {
113 :     k <- as.integer(k[1])
114 : maechler 2115 d <- dim(x)
115 :     stopifnot(-d[1] <= k, k <= d[1]) # had k >= 0
116 : maechler 2112 ## returns "upper triangular" if k >= 0
117 : maechler 2115 .Call(dense_band, x, k, d[2])
118 : maechler 2112 }
119 : maechler 2115 setMethod("triu", "denseMatrix", .triuDense)
120 :     setMethod("triu", "matrix", .triuDense)
121 : bates 1453
122 : maechler 2112 .bandDense <- function(x, k1, k2, ...) {
123 :     k1 <- as.integer(k1[1])
124 :     k2 <- as.integer(k2[1])
125 : mmaechler 2346 dd <- dim(x)
126 :     sqr <- dd[1] == dd[2]
127 :     stopifnot(-dd[1] <= k1, k1 <= k2, k2 <= dd[2])
128 : maechler 2115 r <- .Call(dense_band, x, k1, k2)
129 :     if (sqr && k1 < 0 && k1 == -k2 && isSymmetric(x)) ## symmetric
130 :     forceSymmetric(r)
131 : maechler 2112 else
132 :     r
133 :     }
134 : maechler 2115 setMethod("band", "denseMatrix", .bandDense)
135 :     setMethod("band", "matrix", .bandDense)
136 : maechler 2112
137 :    
138 :     setMethod("symmpart", signature(x = "ddenseMatrix"),
139 :     function(x) .Call(ddense_symmpart, x))
140 :     setMethod("skewpart", signature(x = "ddenseMatrix"),
141 :     function(x) .Call(ddense_skewpart, x))
142 :    
143 : mmaechler 2814
144 :     setMethod("is.finite", signature(x = "dgeMatrix"),
145 :     function(x) {
146 :     if(all(ifin <- is.finite(x@x)))
147 :     allTrueMat(x)
148 :     else if(any(ifin)) {
149 :     r <- as(x, "lMatrix") #-> logical x-slot
150 :     r@x <- ifin
151 :     as(r, "nMatrix")
152 :     }
153 :     else is.na_nsp(x)
154 :     })
155 :    
156 :     ## TODO? -- rather methods for specific subclasses of ddenseMatrix
157 :     setMethod("is.finite", signature(x = "ddenseMatrix"),
158 :     function(x) {
159 :     if(all(ifin <- is.finite(x@x))) return(allTrueMat(x))
160 :     ## *NOT* dge, i.e., either triangular or symmetric
161 :     ## (possibly packed): has finite 0-triangle
162 :     cdx <- getClassDef(class(x))
163 :    
164 :     r <- new(if(extends(cdx,"symmetricMatrix"))"nsyMatrix" else "ngeMatrix")
165 :     r@Dim <- (d <- x@Dim)
166 :     r@Dimnames <- x@Dimnames
167 :     isPacked <- (le <- prod(d)) > length(ifin)
168 :     r@x <- rep.int(TRUE, le)
169 :     iTr <- indTri(d[1], upper= x@uplo == "U", diag= TRUE)
170 :     if(isPacked) { ## x@x is "usable"
171 :     r@x[iTr] <- ifin
172 :     } else {
173 :     r@x[iTr] <- ifin[iTr]
174 :     }
175 :     r
176 :     })
177 :    
178 :     setMethod("is.infinite", signature(x = "ddenseMatrix"),
179 :     function(x) {
180 :     if(any((isInf <- is.infinite(x@x)))) {
181 :     r <- as(x, "lMatrix")#-> logical x-slot; 0 |--> FALSE
182 :     r@x <- isInf
183 :     as(r, "nMatrix")# often sparse .. better way?
184 :     }
185 :     else is.na_nsp(x)
186 :     })

root@r-forge.r-project.org
ViewVC Help
Powered by ViewVC 1.0.0  
Thanks to:
Vienna University of Economics and Business Powered By FusionForge