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

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revision 1391, Fri Aug 18 15:42:24 2006 UTC revision 2123, Wed Mar 5 08:44:52 2008 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  setAs("dgeMatrix", "lgeMatrix", d2l_Matrix)  ## This replaces many "d..Matrix" -> "dgeMatrix" ones
4  setAs("dtrMatrix", "ltrMatrix", d2l_Matrix)  ## >> but << needs all sub(sub(sub)) classes of "ddenseMatrix" listed
5  setAs("dtpMatrix", "ltpMatrix", d2l_Matrix)  ##   -----  in  ../src/Mutils.c
6  setAs("dsyMatrix", "lsyMatrix", d2l_Matrix)  
7  setAs("dspMatrix", "lspMatrix", d2l_Matrix)  setAs("ddenseMatrix", "dgeMatrix",
8          function(from) {
9              if (class(from) != "dgeMatrix")
10                  .Call(dup_mMatrix_as_dgeMatrix, from)
11              else from
12          })
13    
14    
15    ## d(ouble) to l(ogical):
16    setAs("dgeMatrix", "lgeMatrix", function(from) d2l_Matrix(from, "dgeMatrix"))
17    setAs("dsyMatrix", "lsyMatrix", function(from) d2l_Matrix(from, "dsyMatrix"))
18    setAs("dspMatrix", "lspMatrix", function(from) d2l_Matrix(from, "dspMatrix"))
19    setAs("dtrMatrix", "ltrMatrix", function(from) d2l_Matrix(from, "dtrMatrix"))
20    setAs("dtpMatrix", "ltpMatrix", function(from) d2l_Matrix(from, "dtpMatrix"))
21    
22    setAs("ddenseMatrix", "CsparseMatrix",
23          function(from) {
24              if (class(from) != "dgeMatrix") # don't lose symmetry/triangularity/...
25                  as_Csparse(from)
26              else .Call(dense_to_Csparse, from)
27          })
28    
29    ## special case
30    setAs("dgeMatrix", "dgCMatrix",
31          function(from) .Call(dense_to_Csparse, from))
32    
33    setAs("matrix", "CsparseMatrix",
34          function(from) .Call(dense_to_Csparse, from))
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)
# Line 16  Line 62 
62  ## dgeMatrix. Methods for special forms override these.  ## dgeMatrix. Methods for special forms override these.
63    
64  setMethod("norm", signature(x = "ddenseMatrix", type = "missing"),  setMethod("norm", signature(x = "ddenseMatrix", type = "missing"),
65            function(x, type, ...) callGeneric(as(x, "dgeMatrix")))            function(x, type, ...) norm(as(x, "dgeMatrix")))
66    
67  setMethod("norm", signature(x = "ddenseMatrix", type = "character"),  setMethod("norm", signature(x = "ddenseMatrix", type = "character"),
68            function(x, type, ...) callGeneric(as(x, "dgeMatrix"), type))            function(x, type, ...) norm(as(x, "dgeMatrix"), type))
69    
70  setMethod("rcond", signature(x = "ddenseMatrix", type = "missing"),  setMethod("rcond", signature(x = "ddenseMatrix", type = "missing"),
71            function(x, type, ...) callGeneric(as(x, "dgeMatrix")))            function(x, type, ...) rcond(as(x, "dgeMatrix")))
72    
73  setMethod("rcond", signature(x = "ddenseMatrix", type = "character"),  setMethod("rcond", signature(x = "ddenseMatrix", type = "character"),
74            function(x, type, ...) callGeneric(as(x, "dgeMatrix"), type))            function(x, type, ...) rcond(as(x, "dgeMatrix"), type))
75    
76  ## Not really useful; now require *identical* class for result:  ## Not really useful; now require *identical* class for result:
77  ## setMethod("t", signature(x = "ddenseMatrix"),  ## setMethod("t", signature(x = "ddenseMatrix"),
78  ##        function(x) callGeneric(as(x, "dgeMatrix")))  ##        function(x) callGeneric(as(x, "dgeMatrix")))
79    
80  setMethod("tcrossprod", signature(x = "ddenseMatrix", y = "missing"),  setMethod("tcrossprod", signature(x = "ddenseMatrix", y = "missing"),
81            function(x, y = NULL) callGeneric(as(x, "dgeMatrix")))            function(x, y = NULL) tcrossprod(as(x, "dgeMatrix")))
82    
83  setMethod("crossprod", signature(x = "ddenseMatrix", y = "missing"),  setMethod("crossprod", signature(x = "ddenseMatrix", y = "missing"),
84            function(x, y = NULL) callGeneric(as(x, "dgeMatrix")))            function(x, y = NULL) crossprod(as(x, "dgeMatrix")))
85    
86  setMethod("diag", signature(x = "ddenseMatrix"),  setMethod("diag", signature(x = "ddenseMatrix"),
87            function(x = 1, nrow, ncol = n) callGeneric(as(x, "dgeMatrix")))            function(x, nrow, ncol) diag(as(x, "dgeMatrix")))
88    
89  setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),  setMethod("solve", signature(a = "ddenseMatrix", b = "missing"),
90            function(a, b, ...) callGeneric(as(a, "dgeMatrix")))            function(a, b, ...) solve(as(a, "dgeMatrix")))
91    
92  setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),  setMethod("solve", signature(a = "ddenseMatrix", b = "ANY"),
93            function(a, b, ...) callGeneric(as(a, "dgeMatrix"), b))            function(a, b, ...) solve(as(a, "dgeMatrix"), b))
94    
95    ## General method for dense matrix multiplication in case specific methods
96    ## have not been defined.
97    setMethod("%*%", signature(x = "ddenseMatrix", y = "ddenseMatrix"),
98              function(x, y) .Call(dgeMatrix_matrix_mm,
99                                   .Call(dup_mMatrix_as_dgeMatrix, x), y, FALSE),
100              valueClass = "dgeMatrix")
101    
102  setMethod("lu", signature(x = "ddenseMatrix"),  setMethod("lu", signature(x = "ddenseMatrix"),
103            function(x, ...) callGeneric(as(x, "dgeMatrix")))            function(x, ...) lu(as(x, "dgeMatrix")))
104    
105    setMethod("chol", signature(x = "ddenseMatrix", pivot = "ANY"), cholMat)
106    
107  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "missing"),  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "missing"),
108            function(x, logarithm, ...) callGeneric(as(x, "dgeMatrix")))            function(x, logarithm, ...) determinant(as(x, "dgeMatrix")))
109    
110  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "logical"),  setMethod("determinant", signature(x = "ddenseMatrix", logarithm = "logical"),
111            function(x, logarithm, ...)            function(x, logarithm, ...)
112            callGeneric(as(x, "dgeMatrix"), logarithm))            determinant(as(x, "dgeMatrix"), logarithm))
113    
114  ## now done for "dMatrix":  ## now done for "dMatrix":
115  ## setMethod("expm", signature(x = "ddenseMatrix"),  ## setMethod("expm", signature(x = "ddenseMatrix"),
116  ##           function(x) callGeneric(as(x, "dgeMatrix")))  ##           function(x) callGeneric(as(x, "dgeMatrix")))
117    
 setMethod("Schur", signature(x = "ddenseMatrix", vectors = "missing"),  
           function(x, vectors, ...) callGeneric(as(x, "dgeMatrix")))  
   
 setMethod("Schur", signature(x = "ddenseMatrix", vectors = "logical"),  
           function(x, vectors, ...) callGeneric(as(x, "dgeMatrix"), vectors))  
   
   
 ## Cheap version: work via "dgeMatrix" and use the group methods there:  
 ## FIXME(?): try to preserve "symmetric", "triangular", ...  
 setMethod("Arith", ##  "+", "-", "*", "^", "%%", "%/%", "/"  
           signature(e1 = "ddenseMatrix", e2 = "ddenseMatrix"),  
           function(e1, e2) callGeneric(as(e1, "dgeMatrix"),  
                                        as(e2, "dgeMatrix")))  
 setMethod("Arith",  
           signature(e1 = "ddenseMatrix", e2 = "numeric"),  
           function(e1, e2) callGeneric(as(e1, "dgeMatrix"), e2))  
 setMethod("Arith",  
           signature(e1 = "numeric", e2 = "ddenseMatrix"),  
           function(e1, e2) callGeneric(e1, as(e2, "dgeMatrix")))  
   
118  setMethod("Math",  setMethod("Math",
119            signature(x = "ddenseMatrix"),            signature(x = "ddenseMatrix"),
120            function(x) callGeneric(as(x, "dgeMatrix")))            function(x) callGeneric(as(x, "dgeMatrix")))
121    
122    
123    
124  ### for R 2.2.x (and later): -- -- -- -- -- -- -- -- -- -- -- -- -- -- --  .trilDense <- function(x, k = 0, ...) {
125        k <- as.integer(k[1])
126  ### cbind2      d <- dim(x)
127  setMethod("cbind2", signature(x = "ddenseMatrix", y = "numeric"),      stopifnot(-d[1] <= k, k <= d[1]) # had k <= 0
128            function(x, y) {      ## returns "lower triangular" if k <= 0 && sqr
129                d <- dim(x); nr <- d[1]; nc <- d[2]      .Call(dense_band, x, -d[1], k)
130                y <- rep(y, length.out = nr) # 'silent procrustes'  }
131                ## beware of (packed) triangular, symmetric, ...  ## NB: have extra tril(), triu() methods for symmetric ["dsy" and "dsp"] and
132                x <- as(x, "dgeMatrix")  ##     for triangular ["dtr" and "dtp"]
133                x@x <- c(x@x, as.double(y))  setMethod("tril", "denseMatrix", .trilDense)
134                x@Dim[2] <- nc + 1:1  setMethod("tril",      "matrix", .trilDense)
135                if(is.character(dn <- x@Dimnames[[2]]))  
136                    x@Dimnames[[2]] <- c(dn, "")  .triuDense <- function(x, k = 0, ...) {
137                x      k <- as.integer(k[1])
138            })      d <- dim(x)
139  ## the same, (x,y) <-> (y,x):      stopifnot(-d[1] <= k, k <= d[1]) # had k >= 0
140  setMethod("cbind2", signature(x = "numeric", y = "ddenseMatrix"),      ## returns "upper triangular" if k >= 0
141            function(x, y) {      .Call(dense_band, x, k, d[2])
142                d <- dim(y); nr <- d[1]; nc <- d[2]  }
143                x <- rep(x, length.out = nr)  setMethod("triu", "denseMatrix", .triuDense)
144                y <- as(y, "dgeMatrix")  setMethod("triu",      "matrix", .triuDense)
               y@x <- c(as.double(x), y@x)  
               y@Dim[2] <- nc + 1:1  
               if(is.character(dn <- y@Dimnames[[2]]))  
                   y@Dimnames[[2]] <- c("", dn)  
               y  
           })  
145    
146  setMethod("cbind2", signature(x = "ddenseMatrix", y = "matrix"),  .bandDense <- function(x, k1, k2, ...) {
147            function(x, y) callGeneric(x, as(y, "dgeMatrix")))      k1 <- as.integer(k1[1])
148  setMethod("cbind2", signature(x = "matrix", y = "ddenseMatrix"),      k2 <- as.integer(k2[1])
149            function(x, y) callGeneric(as(x, "dgeMatrix"), y))      dd <- dim(x); sqr <- dd[1] == dd[2]
150        stopifnot(-dd[1] <= k1, k1 <= k2, k2 <= dd[1])
151  setMethod("cbind2", signature(x = "ddenseMatrix", y = "ddenseMatrix"),      r <- .Call(dense_band, x, k1, k2)
152            function(x, y) {      if (sqr &&  k1 < 0 &&  k1 == -k2  && isSymmetric(x)) ## symmetric
153                nr <- rowCheck(x,y)          forceSymmetric(r)
154                ncx <- x@Dim[2]      else
155                ncy <- y@Dim[2]          r
               ## 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)  
156                }                }
157                x  setMethod("band", "denseMatrix", .bandDense)
158            })  setMethod("band",      "matrix", .bandDense)
159    
 ### rbind2 -- analogous to cbind2 --- more to do for @x though:  
160    
161  setMethod("rbind2", signature(x = "ddenseMatrix", y = "numeric"),  setMethod("symmpart", signature(x = "ddenseMatrix"),
162            function(x, y) {            function(x) .Call(ddense_symmpart, x))
163                if(is.character(dn <- x@Dimnames[[1]])) dn <- c(dn, "")  setMethod("skewpart", signature(x = "ddenseMatrix"),
164                new("dgeMatrix", Dim = x@Dim + 1:0,            function(x) .Call(ddense_skewpart, x))
                   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"))))  
           })  
165    
 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"))))  
           })  

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