SCM

SCM Repository

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

Diff of /pkg/R/ddenseMatrix.R

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

revision 1391, Fri Aug 18 15:42:24 2006 UTC revision 1708, Fri Dec 22 19:53:37 2006 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    ## Should this method return 'from' without duplication when it has
8    ## class dgeMatrix?
9    setAs("ddenseMatrix", "dgeMatrix",
10          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):
17  setAs("dgeMatrix", "lgeMatrix", d2l_Matrix)  setAs("dgeMatrix", "lgeMatrix", d2l_Matrix)
18  setAs("dtrMatrix", "ltrMatrix", d2l_Matrix)  setAs("dtrMatrix", "ltrMatrix", d2l_Matrix)
19  setAs("dtpMatrix", "ltpMatrix", d2l_Matrix)  setAs("dtpMatrix", "ltpMatrix", d2l_Matrix)
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                if(is.numeric(from))
37                    .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from))
38                else if(is.logical(from)) ## FIXME: this works, but maybe wastefully
39                    as(Matrix(from, sparse=TRUE), "CsparseMatrix")
40                else stop('not-yet-implemented coercion to "CsparseMatrix"')
41          })
42    
43    
44    ## special case needed in the Matrix function
45    setAs("matrix", "dgCMatrix",
46          function(from) {
47              storage.mode(from) <- "double"
48              .Call(dense_to_Csparse, from)
49          })
50    
51    setAs("numeric", "CsparseMatrix",
52          function(from)
53          .Call(dense_to_Csparse, .Call(dup_mMatrix_as_dgeMatrix, from)))
54    
55  setMethod("as.numeric", signature(x = "ddenseMatrix"),  setMethod("as.numeric", signature(x = "ddenseMatrix"),
56            function(x, ...) as(x, "dgeMatrix")@x)            function(x, ...) as(x, "dgeMatrix")@x)
57    
# Line 40  Line 86 
86  setMethod("diag", signature(x = "ddenseMatrix"),  setMethod("diag", signature(x = "ddenseMatrix"),
87            function(x = 1, nrow, ncol = n) callGeneric(as(x, "dgeMatrix")))            function(x = 1, nrow, ncol = n) callGeneric(as(x, "dgeMatrix")))
88    
89  setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),  ## These methods cause an infinite loop in pre-2.4.0
90            function(a, b, ...) callGeneric(as(a, "dgeMatrix")))  ## setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),
91    ##           function(a, b, ...) callGeneric(as(a, "dgeMatrix")))
92  setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),  
93            function(a, b, ...) callGeneric(as(a, "dgeMatrix"), b))  ## setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),
94    ##           function(a, b, ...) callGeneric(as(a, "dgeMatrix"), b))
95    
96    ## General method for dense matrix multiplication in case specific methods
97    ## have not been defined.
98    setMethod("%*%", signature(x = "ddenseMatrix", y = "ddenseMatrix"),
99              function(x, y) .Call(dgeMatrix_matrix_mm,
100                                   .Call(dup_mMatrix_as_dgeMatrix, x), y, FALSE),
101              valueClass = "dgeMatrix")
102    
103  setMethod("lu", signature(x = "ddenseMatrix"),  setMethod("lu", signature(x = "ddenseMatrix"),
104            function(x, ...) callGeneric(as(x, "dgeMatrix")))            function(x, ...) callGeneric(as(x, "dgeMatrix")))
105    
106    setMethod("chol", signature(x = "ddenseMatrix", pivot = "ANY"), cholMat)
107    
108  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "missing"),  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "missing"),
109            function(x, logarithm, ...) callGeneric(as(x, "dgeMatrix")))            function(x, logarithm, ...) callGeneric(as(x, "dgeMatrix")))
110    
# Line 85  Line 141 
141            function(x) callGeneric(as(x, "dgeMatrix")))            function(x) callGeneric(as(x, "dgeMatrix")))
142    
143    
144    ### FIXME: band() et al should be extended from "ddense" to "dense" !
145    ###        However, needs much work to generalize dup_mMatrix_as_dgeMatrix()
146    
147  ### for R 2.2.x (and later): -- -- -- -- -- -- -- -- -- -- -- -- -- -- --  ## NB: have extra tril(), triu() methods for symmetric ["dsy" and "dsp"] and
148    ##     for triangular ["dtr" and "dtp"]
149  ### cbind2  setMethod("tril", "ddenseMatrix",
150  setMethod("cbind2", signature(x = "ddenseMatrix", y = "numeric"),            function(x, k = 0, ...) {
151            function(x, y) {                k <- as.integer(k[1])
152                d <- dim(x); nr <- d[1]; nc <- d[2]                dd <- dim(x); sqr <- dd[1] == dd[2]
153                y <- rep(y, length.out = nr) # 'silent procrustes'                stopifnot(-dd[1] <= k, k <= dd[1]) # had k <= 0
154                ## beware of (packed) triangular, symmetric, ...                ## returns "lower triangular" if k <= 0 && sqr
155                x <- as(x, "dgeMatrix")                .Call(ddense_band, x, -dd[1], k)
156                x@x <- c(x@x, as.double(y))            })
157                x@Dim[2] <- nc + 1:1  
158                if(is.character(dn <- x@Dimnames[[2]]))  setMethod("triu", "ddenseMatrix",
159                    x@Dimnames[[2]] <- c(dn, "")            function(x, k = 0, ...) {
160                x                k <- as.integer(k[1])
161            })                dd <- dim(x); sqr <- dd[1] == dd[2]
162  ## the same, (x,y) <-> (y,x):                stopifnot(-dd[1] <= k, k <= dd[1]) # had k >= 0
163  setMethod("cbind2", signature(x = "numeric", y = "ddenseMatrix"),                ## returns "upper triangular" if k >= 0
164            function(x, y) {                .Call(ddense_band, x, k, dd[2])
165                d <- dim(y); nr <- d[1]; nc <- d[2]            })
166                x <- rep(x, length.out = nr)  
167                y <- as(y, "dgeMatrix")  setMethod("band", "ddenseMatrix",
168                y@x <- c(as.double(x), y@x)            function(x, k1, k2, ...) {
169                y@Dim[2] <- nc + 1:1                k1 <- as.integer(k1[1])
170                if(is.character(dn <- y@Dimnames[[2]]))                k2 <- as.integer(k2[1])
171                    y@Dimnames[[2]] <- c("", dn)                dd <- dim(x); sqr <- dd[1] == dd[2]
172                y                stopifnot(-dd[1] <= k1, k1 <= k2, k2 <= dd[1])
173            })                r <- .Call(ddense_band, x, k1, k2)
174                  if (k1 < 0  &&  k1 == -k2  && isSymmetric(x)) ## symmetric
175  setMethod("cbind2", signature(x = "ddenseMatrix", y = "matrix"),                    as(r, paste(.M.kind(x), "syMatrix", sep=''))
176            function(x, y) callGeneric(x, as(y, "dgeMatrix")))                else
177  setMethod("cbind2", signature(x = "matrix", y = "ddenseMatrix"),                    r
           function(x, y) callGeneric(as(x, "dgeMatrix"), y))  
   
 setMethod("cbind2", signature(x = "ddenseMatrix", y = "ddenseMatrix"),  
           function(x, y) {  
               nr <- rowCheck(x,y)  
               ncx <- x@Dim[2]  
               ncy <- y@Dim[2]  
               ## beware of (packed) triangular, symmetric, ...  
               hasDN <- !is.null(dnx <- dimnames(x)) |  
               !is.null(dny <- dimnames(y))  
               x <- as(x, "dgeMatrix")  
               y <- as(y, "dgeMatrix")  
               x@x <- c(x@x, y@x)  
               x@Dim[2] <- ncx + ncy  
               if(hasDN) {  
                   ## R and S+ are different in which names they take  
                   ## if they differ -- but there's no warning in any case  
                   rn <- if(!is.null(dnx[[1]])) dnx[[1]] else dny[[1]]  
                   cx <- dnx[[2]] ; cy <- dny[[2]]  
                   cn <- if(is.null(cx) && is.null(cy)) NULL  
                   else c(if(!is.null(cx)) cx else rep.int("", ncx),  
                          if(!is.null(cy)) cy else rep.int("", ncy))  
                   x@Dimnames <- list(rn, cn)  
               }  
               x  
           })  
   
 ### rbind2 -- analogous to cbind2 --- more to do for @x though:  
   
 setMethod("rbind2", signature(x = "ddenseMatrix", y = "numeric"),  
           function(x, y) {  
               if(is.character(dn <- x@Dimnames[[1]])) dn <- c(dn, "")  
               new("dgeMatrix", Dim = x@Dim + 1:0,  
                   Dimnames = list(dn, x@Dimnames[[2]]),  
                   x = c(rbind2(as(x,"matrix"), y)))  
           })  
 ## the same, (x,y) <-> (y,x):  
 setMethod("rbind2", signature(x = "numeric", y = "ddenseMatrix"),  
           function(x, y) {  
               if(is.character(dn <- y@Dimnames[[1]])) dn <- c("", dn)  
               new("dgeMatrix", Dim = y@Dim + 1:0,  
                   Dimnames = list(dn, y@Dimnames[[2]]),  
                   x = c(rbind2(x, as(y,"matrix"))))  
           })  
   
 setMethod("rbind2", signature(x = "ddenseMatrix", y = "matrix"),  
           function(x, y) callGeneric(x, as(y, "dgeMatrix")))  
 setMethod("rbind2", signature(x = "matrix", y = "ddenseMatrix"),  
           function(x, y) callGeneric(as(x, "dgeMatrix"), y))  
   
 setMethod("rbind2", signature(x = "ddenseMatrix", y = "ddenseMatrix"),  
           function(x, y) {  
               nc <- colCheck(x,y)  
               nrx <- x@Dim[1]  
               nry <- y@Dim[1]  
               dn <-  
                   if(!is.null(dnx <- dimnames(x)) |  
                      !is.null(dny <- dimnames(y))) {  
                       ## R and S+ are different in which names they take  
                       ## if they differ -- but there's no warning in any case  
                       list(if(is.null(rx <- dnx[[1]]) && is.null(ry <- dny[[1]]))  
                            NULL else  
                            c(if(!is.null(rx)) rx else rep.int("", nrx),  
                              if(!is.null(ry)) ry else rep.int("", nry)),  
                            if(!is.null(dnx[[2]])) dnx[[2]] else dny[[2]])  
   
                   } else list(NULL, NULL)  
               ## beware of (packed) triangular, symmetric, ...  
               new("dgeMatrix", Dim = c(nrx + nry, nc), Dimnames = dn,  
                   x = c(rbind2(as(x,"matrix"), as(y,"matrix"))))  
178            })            })

Legend:
Removed from v.1391  
changed lines
  Added in v.1708

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