SCM

SCM Repository

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

Diff of /pkg/Matrix/R/ddenseMatrix.R

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 686, Thu Mar 31 21:19:35 2005 UTC revision 2551, Sat Jun 19 20:45:45 2010 UTC
# Line 1  Line 1 
1  ### Define Methods that can be inherited for all subclasses  ### Define Methods that can be inherited for all subclasses
2    
3    ## This replaces many "d..Matrix" -> "dgeMatrix" ones
4    ## >> but << needs all sub(sub(sub)) classes of "ddenseMatrix" listed
5    ##   -----  in  ../src/Mutils.c
6    
7    setAs("ddenseMatrix", "dgeMatrix",
8          function(from) .Call(dup_mMatrix_as_dgeMatrix, from))
9    
10    setAs("ddenseMatrix", "matrix",
11          function(from) as(as(from, "dgeMatrix"), "matrix"))
12    
13    ## d(ouble) to l(ogical):
14    setAs("dgeMatrix", "lgeMatrix", function(from) d2l_Matrix(from, "dgeMatrix"))
15    setAs("dsyMatrix", "lsyMatrix", function(from) d2l_Matrix(from, "dsyMatrix"))
16    setAs("dspMatrix", "lspMatrix", function(from) d2l_Matrix(from, "dspMatrix"))
17    setAs("dtrMatrix", "ltrMatrix", function(from) d2l_Matrix(from, "dtrMatrix"))
18    setAs("dtpMatrix", "ltpMatrix", function(from) d2l_Matrix(from, "dtpMatrix"))
19    
20    if(FALSE) ## FIXME, this fails for ("dtpMatrix" -> "CsparseMatrix") where .dense2C() works
21    setAs("ddenseMatrix", "CsparseMatrix",
22          function(from) {
23              if (class(from) != "dgeMatrix") # don't lose symmetry/triangularity/...
24                  as_Csparse(from)
25              else .Call(dense_to_Csparse, from)
26          })
27    
28    ## special case
29    setAs("dgeMatrix", "dgCMatrix",
30          function(from) .Call(dense_to_Csparse, from))
31    
32    setAs("matrix", "CsparseMatrix",
33          function(from) .Call(dense_to_Csparse, from))
34    ##       function(from) {
35    ##          if(is.numeric(from))
36    ##              .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from))
37    ##          else if(is.logical(from)) ## FIXME: this works, but maybe wastefully
38    ##                 as(Matrix(from, sparse=TRUE), "CsparseMatrix")
39    ##          else stop('not-yet-implemented coercion to "CsparseMatrix"')
40    ##       })
41    
42    
43    ## special case needed in the Matrix function
44    setAs("matrix", "dgCMatrix",
45          function(from) {
46              storage.mode(from) <- "double"
47              .Call(dense_to_Csparse, from)
48          })
49    
50    setAs("numeric", "CsparseMatrix",
51          function(from)
52          .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from)))
53    
54    setMethod("as.numeric", signature(x = "ddenseMatrix"),
55              function(x, ...) as(x, "dgeMatrix")@x)
56    
57    ## -- see also ./Matrix.R  e.g., for a show() method
58    
59  ## These methods are the 'fallback' methods for all dense numeric  ## These methods are the 'fallback' methods for all dense numeric
60  ## matricess in that they simply coerce the ddenseMatrix to a  ## matrices in that they simply coerce the ddenseMatrix to a
61  ## dgeMatrix. Methods for special forms override these.  ## dgeMatrix. Methods for special forms override these.
62    
63  setMethod("norm", signature(x = "ddenseMatrix", type = "missing"),  setMethod("norm", signature(x = "ddenseMatrix", type = "missing"),
64            function(x, type, ...) callGeneric(as(x, "dgeMatrix")))            function(x, type, ...) norm(as(x, "dgeMatrix")))
65    
66  setMethod("norm", signature(x = "ddenseMatrix", type = "character"),  setMethod("norm", signature(x = "ddenseMatrix", type = "character"),
67            function(x, type, ...) callGeneric(as(x, "dgeMatrix"), type))            function(x, type, ...) norm(as(x, "dgeMatrix"), type))
68    
69  setMethod("rcond", signature(x = "ddenseMatrix", type = "missing"),  setMethod("rcond", signature(x = "ddenseMatrix", norm = "missing"),
70            function(x, type, ...) callGeneric(as(x, "dgeMatrix")))            function(x, norm, ...) rcond(as(x, "dgeMatrix"), ...))
71    
72  setMethod("rcond", signature(x = "ddenseMatrix", type = "character"),  setMethod("rcond", signature(x = "ddenseMatrix", norm = "character"),
73            function(x, type, ...) callGeneric(as(x, "dgeMatrix"), type))            function(x, norm, ...) rcond(as(x, "dgeMatrix"), norm, ...))
74    
75  setMethod("t", signature(x = "ddenseMatrix"),  ## Not really useful; now require *identical* class for result:
76            function(x) callGeneric(as(x, "dgeMatrix")))  ## setMethod("t", signature(x = "ddenseMatrix"),
77    ##        function(x) callGeneric(as(x, "dgeMatrix")))
 setMethod("tcrossprod", signature(x = "ddenseMatrix"),  
           function(x) callGeneric(as(x, "dgeMatrix")))  
   
 setMethod("crossprod", signature(x = "ddenseMatrix", y = "missing"),  
           function(x, y = NULL) callGeneric(as(x, "dgeMatrix")))  
78    
79  setMethod("diag", signature(x = "ddenseMatrix"),  setMethod("diag", signature(x = "ddenseMatrix"),
80            function(x = 1, nrow, ncol = n) callGeneric(as(x, "dgeMatrix")))            function(x, nrow, ncol) diag(as(x, "dgeMatrix")))
81    
82  setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),  setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),
83            function(a, b, ...) callGeneric(as(a, "dgeMatrix")))            function(a, b, ...) solve(as(a, "dgeMatrix")))
84    
85  setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),  for(.b in c("Matrix","ANY")) ## << against ambiguity notes
86            function(a, b, ...) callGeneric(as(a, "dgeMatrix"), b))  setMethod("solve", signature(a = "ddenseMatrix", b = .b),
87              function(a, b, ...) solve(as(a, "dgeMatrix"), b))
88    for(.b in c("matrix","numeric")) ## << against ambiguity notes
89    setMethod("solve", signature(a = "ddenseMatrix", b = .b),
90              function(a, b, ...) solve(as(a, "dgeMatrix"), Matrix(b)))
91    
92  setMethod("lu", signature(x = "ddenseMatrix"),  setMethod("lu", signature(x = "ddenseMatrix"),
93            function(x, ...) callGeneric(as(x, "dgeMatrix")))            function(x, ...) lu(as(x, "dgeMatrix"), ...))
94    
95  setMethod("determinant", signature(x = "dgeMatrix", logarithm = "missing"),  setMethod("chol", signature(x = "ddenseMatrix"), cholMat)
           function(x, logarithm, ...) callGeneric(as(x, "dgeMatrix")))  
96    
97  setMethod("determinant", signature(x = "dgeMatrix", logarithm = "logical"),  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "missing"),
98              function(x, logarithm, ...) determinant(as(x, "dgeMatrix")))
99    
100    setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "logical"),
101            function(x, logarithm, ...)            function(x, logarithm, ...)
102            callGeneric(as(x, "dgeMatrix"), logarithm))            determinant(as(x, "dgeMatrix"), logarithm))
103    
104    ## now done for "dMatrix":
105    ## setMethod("expm", signature(x = "ddenseMatrix"),
106    ##           function(x) callGeneric(as(x, "dgeMatrix")))
107    
108  setMethod("expm", signature(x = "ddenseMatrix"),  setMethod("Math",
109              signature(x = "ddenseMatrix"),
110            function(x) callGeneric(as(x, "dgeMatrix")))            function(x) callGeneric(as(x, "dgeMatrix")))
111    
 setMethod("Schur", signature(x = "ddenseMatrix", vectors = "missing"),  
           function(x, vectors, ...) callGeneric(as(x, "dgeMatrix")))  
112    
 setMethod("Schur", signature(x = "ddenseMatrix", vectors = "logical"),  
           function(x, vectors, ...) callGeneric(as(x, "dgeMatrix"), vectors))  
113    
114    .trilDense <- function(x, k = 0, ...) {
115        k <- as.integer(k[1])
116        d <- dim(x)
117        stopifnot(-d[1] <= k, k <= d[1]) # had k <= 0
118        ## returns "lower triangular" if k <= 0 && sqr
119        .Call(dense_band, x, -d[1], k)
120    }
121    ## NB: have extra tril(), triu() methods for symmetric ["dsy" and "dsp"] and
122    ##     for triangular ["dtr" and "dtp"]
123    setMethod("tril", "denseMatrix", .trilDense)
124    setMethod("tril",      "matrix", .trilDense)
125    
126    .triuDense <- function(x, k = 0, ...) {
127        k <- as.integer(k[1])
128        d <- dim(x)
129        stopifnot(-d[1] <= k, k <= d[1]) # had k >= 0
130        ## returns "upper triangular" if k >= 0
131        .Call(dense_band, x, k, d[2])
132    }
133    setMethod("triu", "denseMatrix", .triuDense)
134    setMethod("triu",      "matrix", .triuDense)
135    
136    .bandDense <- function(x, k1, k2, ...) {
137        k1 <- as.integer(k1[1])
138        k2 <- as.integer(k2[1])
139        dd <- dim(x)
140        sqr <- dd[1] == dd[2]
141        stopifnot(-dd[1] <= k1, k1 <= k2, k2 <= dd[2])
142        r <- .Call(dense_band, x, k1, k2)
143        if (sqr &&  k1 < 0 &&  k1 == -k2  && isSymmetric(x)) ## symmetric
144            forceSymmetric(r)
145        else
146            r
147    }
148    setMethod("band", "denseMatrix", .bandDense)
149    setMethod("band",      "matrix", .bandDense)
150    
151    
152    setMethod("symmpart", signature(x = "ddenseMatrix"),
153              function(x) .Call(ddense_symmpart, x))
154    setMethod("skewpart", signature(x = "ddenseMatrix"),
155              function(x) .Call(ddense_skewpart, x))
156    

Legend:
Removed from v.686  
changed lines
  Added in v.2551

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