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[matrix] Diff of /pkg/R/ddenseMatrix.R
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Diff of /pkg/R/ddenseMatrix.R

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revision 1447, Fri Aug 25 20:38:36 2006 UTC revision 1575, Mon Sep 18 14:47:40 2006 UTC
# Line 3  Line 3 
3  ## This replaces many "d..Matrix" -> "dgeMatrix" ones  ## This replaces many "d..Matrix" -> "dgeMatrix" ones
4  ## >> but << needs all sub(sub(sub)) classes of "ddenseMatrix" listed  ## >> but << needs all sub(sub(sub)) classes of "ddenseMatrix" listed
5  ##   -----  in  ../src/Mutils.c  ##   -----  in  ../src/Mutils.c
6    
7    ## Should this method return 'from' without duplication when it has
8    ## class dgeMatrix?
9  setAs("ddenseMatrix", "dgeMatrix",  setAs("ddenseMatrix", "dgeMatrix",
10        function(from) .Call(dup_mMatrix_as_dgeMatrix, from))        function(from) {
11              if (class(from) != "dgeMatrix")
12                  from <- .Call(dup_mMatrix_as_dgeMatrix, from)
13              from
14          })
15    
16  ## d(ouble) to l(ogical):  ## d(ouble) to l(ogical):
17  setAs("dgeMatrix", "lgeMatrix", d2l_Matrix)  setAs("dgeMatrix", "lgeMatrix", d2l_Matrix)
# Line 13  Line 20 
20  setAs("dsyMatrix", "lsyMatrix", d2l_Matrix)  setAs("dsyMatrix", "lsyMatrix", d2l_Matrix)
21  setAs("dspMatrix", "lspMatrix", d2l_Matrix)  setAs("dspMatrix", "lspMatrix", d2l_Matrix)
22    
23    setAs("ddenseMatrix", "CsparseMatrix",
24          function(from) {
25              if (class(from) != "dgeMatrix")
26                  from <- .Call(dup_mMatrix_as_dgeMatrix, from)
27              .Call(dense_to_Csparse, from)
28          })
29    
30    ## special case
31    setAs("dgeMatrix", "dgCMatrix",
32          function(from) .Call(dense_to_Csparse, from))
33    
34    setAs("matrix", "CsparseMatrix",
35          function(from)
36          .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from)))
37    
38    ## special case needed in the Matrix function
39    setAs("matrix", "dgCMatrix",
40          function(from) {
41              storage.mode(from) <- "double"
42              .Call(dense_to_Csparse, from)
43          })
44    
45    setAs("numeric", "CsparseMatrix",
46          function(from)
47          .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from)))
48    
49  setMethod("as.numeric", signature(x = "ddenseMatrix"),  setMethod("as.numeric", signature(x = "ddenseMatrix"),
50            function(x, ...) as(x, "dgeMatrix")@x)            function(x, ...) as(x, "dgeMatrix")@x)
51    
# Line 47  Line 80 
80  setMethod("diag", signature(x = "ddenseMatrix"),  setMethod("diag", signature(x = "ddenseMatrix"),
81            function(x = 1, nrow, ncol = n) callGeneric(as(x, "dgeMatrix")))            function(x = 1, nrow, ncol = n) callGeneric(as(x, "dgeMatrix")))
82    
83  setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),  ## These methods cause an infinite loop in pre-2.4.0
84            function(a, b, ...) callGeneric(as(a, "dgeMatrix")))  ## setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),
85    ##           function(a, b, ...) callGeneric(as(a, "dgeMatrix")))
86  setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),  
87            function(a, b, ...) callGeneric(as(a, "dgeMatrix"), b))  ## setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),
88    ##           function(a, b, ...) callGeneric(as(a, "dgeMatrix"), b))
89    
90    ## General method for dense matrix multiplication in case specific methods
91    ## have not been defined.
92    setMethod("%*%", signature(x = "ddenseMatrix", y = "ddenseMatrix"),
93              function(x, y) .Call(dgeMatrix_matrix_mm,
94                                   .Call(dup_mMatrix_as_dgeMatrix, x), y, FALSE),
95              valueClass = "dgeMatrix")
96    
97  setMethod("lu", signature(x = "ddenseMatrix"),  setMethod("lu", signature(x = "ddenseMatrix"),
98            function(x, ...) callGeneric(as(x, "dgeMatrix")))            function(x, ...) callGeneric(as(x, "dgeMatrix")))
# Line 195  Line 236 
236                new("dgeMatrix", Dim = c(nrx + nry, nc), Dimnames = dn,                new("dgeMatrix", Dim = c(nrx + nry, nc), Dimnames = dn,
237                    x = c(rbind2(as(x,"matrix"), as(y,"matrix"))))                    x = c(rbind2(as(x,"matrix"), as(y,"matrix"))))
238            })            })
239    
240    ### FIXME: band() et al should be extended from "ddense" to "dense" !
241    ###        However, needs much work to generalize dup_mMatrix_as_dgeMatrix()
242    
243    ## NB: have extra tril(), triu() methods for symmetric ["dsy" and "dsp"] and
244    ##     for triangular ["dtr" and "dtp"]
245    setMethod("tril", "ddenseMatrix",
246              function(x, k = 0, ...) {
247                  k <- as.integer(k[1])
248                  dd <- dim(x); sqr <- dd[1] == dd[2]
249                  stopifnot(-dd[1] <= k, k <= dd[1]) # had k <= 0
250                  ## returns "lower triangular" if k <= 0 && sqr
251                  .Call(ddense_band, x, -dd[1], k)
252              })
253    
254    setMethod("triu", "ddenseMatrix",
255              function(x, k = 0, ...) {
256                  k <- as.integer(k[1])
257                  dd <- dim(x); sqr <- dd[1] == dd[2]
258                  stopifnot(-dd[1] <= k, k <= dd[1]) # had k >= 0
259                  ## returns "upper triangular" if k >= 0
260                  .Call(ddense_band, x, k, dd[2])
261              })
262    
263    setMethod("band", "ddenseMatrix",
264              function(x, k1, k2, ...) {
265                  k1 <- as.integer(k1[1])
266                  k2 <- as.integer(k2[1])
267                  dd <- dim(x); sqr <- dd[1] == dd[2]
268                  stopifnot(-dd[1] <= k1, k1 <= k2, k2 <= dd[1])
269                  r <- .Call(ddense_band, x, k1, k2)
270                  if (k1 < 0  &&  k1 == -k2  && isSymmetric(x)) ## symmetric
271                      as(r, paste(.M.kind(x), "syMatrix", sep=''))
272                  else
273                      r
274              })

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