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Diff of /pkg/R/Matrix.R

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revision 1751, Tue Jan 30 17:41:02 2007 UTC revision 2110, Sat Jan 26 20:59:26 2008 UTC
# Line 3  Line 3 
3    
4  ### Virtual coercions -- via smart "helpers" (-> ./Auxiliaries.R)  ### Virtual coercions -- via smart "helpers" (-> ./Auxiliaries.R)
5    
6  setAs("Matrix", "sparseMatrix", function(from) as_Csparse(from))  setAs("Matrix", "sparseMatrix", function(from) as(from, "CsparseMatrix"))
7    setAs("Matrix", "CsparseMatrix", function(from) as_Csparse(from))
8  setAs("Matrix", "denseMatrix",  function(from) as_dense(from))  setAs("Matrix", "denseMatrix",  function(from) as_dense(from))
9    
10    ## Maybe TODO:
11    ## setAs("Matrix", "nMatrix", function(from) ....)
12    
13  ## Most of these work; this is a last resort:  ## Most of these work; this is a last resort:
14  setAs(from = "Matrix", to = "matrix", # do *not* call base::as.matrix() here:  setAs(from = "Matrix", to = "matrix", # do *not* call base::as.matrix() here:
15        function(from) .bail.out.2("coerce", class(from), class(to)))        function(from) .bail.out.2("coerce", class(from), class(to)))
# Line 40  Line 44 
44  setMethod("as.logical", signature(x = "Matrix"),  setMethod("as.logical", signature(x = "Matrix"),
45            function(x, ...) as.logical(as.vector(x)))            function(x, ...) as.logical(as.vector(x)))
46    
47    setMethod("cov2cor", signature(V = "Matrix"),
48              function(V) as(cov2cor(as(V, "matrix")), "dpoMatrix"))
49    
50  ## "base" has an isSymmetric() S3-generic since R 2.3.0  ## "base" has an isSymmetric() S3-generic since R 2.3.0
51  setMethod("isSymmetric", signature(object = "symmetricMatrix"),  setMethod("isSymmetric", signature(object = "symmetricMatrix"),
# Line 84  Line 90 
90            function(obj) { obj@Dimnames <- list(NULL,NULL); obj})            function(obj) { obj@Dimnames <- list(NULL,NULL); obj})
91    
92  setMethod("all", signature(x = "Matrix"),  setMethod("all", signature(x = "Matrix"),
93            function(x, ..., na.rm) { x <- as(x, "lMatrix"); callGeneric()})            function(x, ..., na.rm)
94  setMethod("any", signature(x = "Matrix"),            callGeneric(as(x, "lMatrix"), ..., na.rm=na.rm))
           function(x, ..., na.rm) { x <- as(x, "lMatrix"); callGeneric()})  
95    
96  setMethod("!", "Matrix", function(e1) !as(e1, "lMatrix"))  setMethod("any", signature(x = "Matrix"),
97              function(x, ..., na.rm)
98              callGeneric(as(x, "lMatrix"), ..., na.rm=na.rm))
99    
100    ## NOTE:  "&" and "|"  are now in group "Logic" c "Ops" --> ./Ops.R
101    ##        "!" is in ./not.R
102    
103    
104  Matrix <-  Matrix <-
# Line 99  Line 108 
108      sparseDefault <- function(m) prod(dim(m)) > 2*sum(isN0(as(m, "matrix")))      sparseDefault <- function(m) prod(dim(m)) > 2*sum(isN0(as(m, "matrix")))
109    
110      i.M <- is(data, "Matrix")      i.M <- is(data, "Matrix")
111        if(!i.M && inherits(data, "table")) # special treatment
112            class(data) <- "matrix" # "matrix" first for S4 dispatch
113      if(is.null(sparse1 <- sparse) && (i.M || is(data, "matrix")))      if(is.null(sparse1 <- sparse) && (i.M || is(data, "matrix")))
114          sparse <- sparseDefault(data)          sparse <- sparseDefault(data)
115    
# Line 120  Line 130 
130          if(length(data) == 1 && is0(data) && !identical(sparse, FALSE)) {          if(length(data) == 1 && is0(data) && !identical(sparse, FALSE)) {
131              ## Matrix(0, ...) : always sparse unless "sparse = FALSE":              ## Matrix(0, ...) : always sparse unless "sparse = FALSE":
132              if(is.null(sparse)) sparse1 <- sparse <- TRUE              if(is.null(sparse)) sparse1 <- sparse <- TRUE
133                i.M <- sM <- TRUE
134              ## will be sparse: do NOT construct full matrix!              ## will be sparse: do NOT construct full matrix!
135              data <- new(if(is.numeric(data)) "dgTMatrix" else              data <- new(if(is.numeric(data)) "dgTMatrix" else
136                          if(is.logical(data)) "lgTMatrix" else                          if(is.logical(data)) "lgTMatrix" else
# Line 127  Line 138 
138                          Dim = as.integer(c(nrow,ncol)),                          Dim = as.integer(c(nrow,ncol)),
139                          Dimnames = if(is.null(dimnames)) list(NULL,NULL)                          Dimnames = if(is.null(dimnames)) list(NULL,NULL)
140                          else dimnames)                          else dimnames)
141          } else { ## normal case          } else { ## normal case - using .Internal() to avoid more copying
142                if(getRversion() >= "2.7.0")
143                    data <- .Internal(matrix(data, nrow, ncol, byrow, dimnames))
144                else {
145              data <- .Internal(matrix(data, nrow, ncol, byrow))              data <- .Internal(matrix(data, nrow, ncol, byrow))
146                    dimnames(data) <- dimnames
147                }
148              if(is.null(sparse))              if(is.null(sparse))
149                  sparse <- sparseDefault(data)                  sparse <- sparseDefault(data)
             dimnames(data) <- dimnames  
150          }          }
151          doDN <- FALSE          doDN <- FALSE
152      } else if(!missing(nrow) || !missing(ncol)|| !missing(byrow))      } else if(!missing(nrow) || !missing(ncol)|| !missing(byrow))
# Line 179  Line 194 
194                    }, sep="")                    }, sep="")
195          }          }
196    
197      ## Now coerce and return      ## Can we coerce and be done?
198        if(!canCoerce(data,cl)) { ## try to coerce ``via'' virtual classes
199            if(sparse && !sM)
200                data <- as(data, "sparseMatrix")
201            else if(!sparse && !is(data, "denseMatrix"))
202                data <- as(data, "denseMatrix")
203            if(isTri && !is(data, "triangularMatrix"))
204                data <- as(data, "triangularMatrix")
205            else if(isSym && !is(data, "symmetricMatrix"))
206                data <- as(data, "symmetricMatrix")
207        }
208        ## now coerce in any case .. maybe producing sensible error message:
209      as(data, cl)      as(data, cl)
210  }  }
211    
# Line 190  Line 216 
216    
217  setMethod("%*%", signature(x = "Matrix", y = "numeric"),  setMethod("%*%", signature(x = "Matrix", y = "numeric"),
218            function(x, y) callGeneric(x, as.matrix(y)))            function(x, y) callGeneric(x, as.matrix(y)))
   
219  setMethod("%*%", signature(x = "numeric", y = "Matrix"),  setMethod("%*%", signature(x = "numeric", y = "Matrix"),
220            function(x, y) callGeneric(matrix(x, nrow = 1, byrow=TRUE), y))            function(x, y) callGeneric(matrix(x, nrow = 1, byrow=TRUE), y))
221    
222    setMethod("%*%", signature(x = "Matrix", y = "matrix"),
223              function(x, y) callGeneric(x, Matrix(y)))
224    setMethod("%*%", signature(x = "matrix", y = "Matrix"),
225              function(x, y) callGeneric(Matrix(x), y))
226    
227    
228  setMethod("crossprod", signature(x = "Matrix", y = "numeric"),  setMethod("crossprod", signature(x = "Matrix", y = "numeric"),
229            function(x, y = NULL) callGeneric(x, as.matrix(y)))            function(x, y = NULL) callGeneric(x, as.matrix(y)))
230  setMethod("crossprod", signature(x = "numeric", y = "Matrix"),  setMethod("crossprod", signature(x = "numeric", y = "Matrix"),
231            function(x, y = NULL)  callGeneric(as.matrix(x), y))            function(x, y = NULL)  callGeneric(as.matrix(x), y))
232    
233    setMethod("crossprod", signature(x = "Matrix", y = "matrix"),
234              function(x, y = NULL) callGeneric(x, Matrix(y)))
235    setMethod("crossprod", signature(x = "matrix", y = "Matrix"),
236              function(x, y = NULL) callGeneric(Matrix(x), y))
237    
238  ## The as.matrix() promotion seems illogical to MM,  ## The as.matrix() promotion seems illogical to MM,
239  ## but is according to help(tcrossprod, package = "base") :  ## but is according to help(tcrossprod, package = "base") :
240  setMethod("tcrossprod", signature(x = "Matrix", y = "numeric"),  setMethod("tcrossprod", signature(x = "Matrix", y = "numeric"),
241            function(x, y = NULL) callGeneric(x, as.matrix(y)))            function(x, y = NULL) callGeneric(x, as.matrix(y)))
242  setMethod("tcrossprod", signature(x = "numeric", y = "Matrix"),  setMethod("tcrossprod", signature(x = "numeric", y = "Matrix"),
243            function(x, y = NULL)  callGeneric(as.matrix(x), y))            function(x, y = NULL)  callGeneric(as.matrix(x), y))
244    setMethod("tcrossprod", signature(x = "Matrix", y = "matrix"),
245              function(x, y = NULL) callGeneric(x, Matrix(y)))
246    setMethod("tcrossprod", signature(x = "matrix", y = "Matrix"),
247              function(x, y = NULL) callGeneric(Matrix(x), y))
248    
249  ## maybe not optimal  ## maybe not 100% optimal, but elegant:
250  setMethod("solve", signature(a = "Matrix", b = "missing"),  setMethod("solve", signature(a = "Matrix", b = "missing"),
251            function(a, b, ...) solve(a, Diagonal(nrow(a))))            function(a, b, ...) solve(a, Diagonal(nrow(a))))
252    
253  setMethod("solve", signature(a = "Matrix", b = "numeric"),  setMethod("solve", signature(a = "Matrix", b = "numeric"),
254            function(a, b, ...) callGeneric(a, as.matrix(b)))            function(a, b, ...) callGeneric(a, Matrix(b)))
 ## when no sub-class method is found, bail out  
255  setMethod("solve", signature(a = "Matrix", b = "matrix"),  setMethod("solve", signature(a = "Matrix", b = "matrix"),
256            function(a, b, ...) .bail.out.2("solve", class(a), "matrix"))            function(a, b, ...) callGeneric(a, Matrix(b)))
257    setMethod("solve", signature(a = "matrix", b = "Matrix"),
258              function(a, b, ...) callGeneric(Matrix(a), b))
259    
260    ## when no sub-class method is found, bail out
261  setMethod("solve", signature(a = "Matrix", b = "Matrix"),  setMethod("solve", signature(a = "Matrix", b = "Matrix"),
262            function(a, b, ...) .bail.out.2("solve", class(a), class(b)))            function(a, b, ...) .bail.out.2("solve", class(a), class(b)))
263    
# Line 243  Line 286 
286  setMethod("kronecker", signature(X = "Matrix", Y = "ANY",  setMethod("kronecker", signature(X = "Matrix", Y = "ANY",
287                                   FUN = "ANY", make.dimnames = "ANY"),                                   FUN = "ANY", make.dimnames = "ANY"),
288            function(X, Y, FUN, make.dimnames, ...) {            function(X, Y, FUN, make.dimnames, ...) {
289                  if(is(X, "sparseMatrix"))
290                      warning("using slow kronecker() method")
291                X <- as(X, "matrix") ; Matrix(callGeneric()) })                X <- as(X, "matrix") ; Matrix(callGeneric()) })
292    
293  setMethod("kronecker", signature(X = "ANY", Y = "Matrix",  setMethod("kronecker", signature(X = "ANY", Y = "Matrix",
294                                   FUN = "ANY", make.dimnames = "ANY"),                                   FUN = "ANY", make.dimnames = "ANY"),
295            function(X, Y, FUN, make.dimnames, ...) {            function(X, Y, FUN, make.dimnames, ...) {
296                  if(is(Y, "sparseMatrix"))
297                      warning("using slow kronecker() method")
298                Y <- as(Y, "matrix") ; Matrix(callGeneric()) })                Y <- as(Y, "matrix") ; Matrix(callGeneric()) })
299    
300    
# Line 261  Line 309 
309  setMethod("t", signature(x = "Matrix"),  setMethod("t", signature(x = "Matrix"),
310            function(x) .bail.out.1(.Generic, class(x)))            function(x) .bail.out.1(.Generic, class(x)))
311    
312    setMethod("norm", signature(x = "Matrix", type = "character"),
313              function(x, type, ...) .bail.out.1(.Generic, class(x)))
314    setMethod("rcond", signature(x = "Matrix", type = "character"),
315              function(x, type, ...) .bail.out.1(.Generic, class(x)))
316    
317    
318    ## for all :
319    setMethod("norm", signature(x = "ANY", type = "missing"),
320              function(x, type, ...) norm(x, type = "O", ...))
321    setMethod("rcond", signature(x = "ANY", type = "missing"),
322              function(x, type, ...) rcond(x, type = "O", ...))
323    
324    
325    
326    
327    
328    ## MM: More or less "Cut & paste" from
329    ## --- diff.default() from  R/src/library/base/R/diff.R :
330    setMethod("diff", signature(x = "Matrix"),
331              function(x, lag = 1, differences = 1, ...) {
332                  if (length(lag) > 1 || length(differences) > 1 ||
333                      lag < 1 || differences < 1)
334                      stop("'lag' and 'differences' must be integers >= 1")
335                  xlen <- nrow(x)
336                  if (lag * differences >= xlen)
337                      return(x[,FALSE][0])  # empty of proper mode
338    
339                  i1 <- -1:-lag
340                  for (i in 1:differences)
341                      x <- x[i1, , drop = FALSE] -
342                          x[-nrow(x):-(nrow(x)-lag+1), , drop = FALSE]
343                  x
344              })
345    
346    setMethod("image", "Matrix",
347              function(x, ...) { # coercing to sparse is not inefficient,
348                  ##               since we need 'i' and 'j' for levelplot()
349                  x <- as(as(x, "sparseMatrix"), "dMatrix")
350                  callGeneric()
351              })
352    
353    
354  ## Group Methods  ## Group Methods
355    
356  ##-> see ./Ops.R  ##-> see ./Ops.R
357    ##         ~~~~~
358    ## For all  non-dMatrix objects, and note that  "all" and "any" have their own
359    setMethod("Summary", signature(x = "Matrix", na.rm = "ANY"),
360              function(x, ..., na.rm)
361              callGeneric(as(x,"dMatrix"), ..., na.rm = na.rm))
362    
363    
364  ### --------------------------------------------------------------------------  ### --------------------------------------------------------------------------
365  ###  ###
# Line 276  Line 372 
372  ## "x[]":  ## "x[]":
373  setMethod("[", signature(x = "Matrix",  setMethod("[", signature(x = "Matrix",
374                           i = "missing", j = "missing", drop = "ANY"),                           i = "missing", j = "missing", drop = "ANY"),
375            function (x, i, j, drop) x)            function (x, i, j, ..., drop) x)
376    
377  ## missing 'drop' --> 'drop = TRUE'  ## missing 'drop' --> 'drop = TRUE'
378  ##                     -----------  ##                     -----------
379  ## select rows  ## select rows
380  setMethod("[", signature(x = "Matrix", i = "index", j = "missing",  setMethod("[", signature(x = "Matrix", i = "index", j = "missing",
381                           drop = "missing"),                           drop = "missing"),
382            function(x,i,j, drop) callGeneric(x, i=i, drop= TRUE))            function(x,i,j, ..., drop) {
383                  if(nargs() == 2) { ## e.g. M[0] , M[TRUE],  M[1:2]
384                      if(any(i) || prod(dim(x)) == 0)
385                          as.vector(x)[i]
386                      else ## save memory
387                          as.vector(x[1,1])[FALSE]
388                  } else {
389                      callGeneric(x, i=i, , drop=TRUE)
390                      ##                  ^^
391                  }
392              })
393    
394  ## select columns  ## select columns
395  setMethod("[", signature(x = "Matrix", i = "missing", j = "index",  setMethod("[", signature(x = "Matrix", i = "missing", j = "index",
396                           drop = "missing"),                           drop = "missing"),
397            function(x,i,j, drop) callGeneric(x, j=j, drop= TRUE))            function(x,i,j, ..., drop) callGeneric(x, j=j, drop= TRUE))
398  setMethod("[", signature(x = "Matrix", i = "index", j = "index",  setMethod("[", signature(x = "Matrix", i = "index", j = "index",
399                           drop = "missing"),                           drop = "missing"),
400            function(x,i,j, drop) callGeneric(x, i=i, j=j, drop= TRUE))            function(x,i,j, ..., drop) callGeneric(x, i=i, j=j, drop= TRUE))
401    
402  ## bail out if any of (i,j,drop) is "non-sense"  ## bail out if any of (i,j,drop) is "non-sense"
403  setMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY", drop = "ANY"),  setMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY", drop = "ANY"),
404            function(x,i,j, drop)            function(x,i,j, ..., drop)
405            stop("invalid or not-yet-implemented 'Matrix' subsetting"))            stop("invalid or not-yet-implemented 'Matrix' subsetting"))
406    
407  ## logical indexing, such as M[ M >= 7 ] *BUT* also M[ M[,1] >= 3,],  ## logical indexing, such as M[ M >= 7 ] *BUT* also M[ M[,1] >= 3,],
408  ## The following is *both* for    M [ <logical>   ]  ## The following is *both* for    M [ <logical>   ]
409  ##                 and also for   M [ <logical> , ]  ##                 and also for   M [ <logical> , ]
410  .M.sub.i.logical <- function (x, i, j, drop)  .M.sub.i.logical <- function (x, i, j, ..., drop)
411  {  {
412      nA <- nargs()      nA <- nargs()
413      if(nA == 2) { ##  M [ M >= 7 ]      if(nA == 2) { ##  M [ M >= 7 ]
# Line 311  Line 418 
418          stop("not-yet-implemented 'Matrix' subsetting") ## FIXME          stop("not-yet-implemented 'Matrix' subsetting") ## FIXME
419    
420      } else stop("nargs() = ", nA,      } else stop("nargs() = ", nA,
421                  ".  Extraneous illegal arguments inside '[ .. ]' ?")                  ".  Extraneous illegal arguments inside '[ .. ]' (i.logical)?")
422  }  }
423  setMethod("[", signature(x = "Matrix", i = "lMatrix", j = "missing",  setMethod("[", signature(x = "Matrix", i = "lMatrix", j = "missing",
424                           drop = "ANY"),                           drop = "ANY"),
# Line 321  Line 428 
428            .M.sub.i.logical)            .M.sub.i.logical)
429    
430    
431  ## A[ ij ]  where ij is (i,j) 2-column matrix :  ## A[ ij ]  where ij is (i,j) 2-column matrix -- but also when that is logical mat!
432  .M.sub.i.2col <- function (x, i, j, drop)  .M.sub.i.2col <- function (x, i, j, ..., drop)
433  {  {
434      nA <- nargs()      nA <- nargs()
435      if(nA == 2) { ##  M [ cbind(ii,jj) ]      if(nA == 2) { ##  M [ cbind(ii,jj) ] or M [ <logical matrix> ]
436          if(!is.integer(nc <- ncol(i)))          if(!is.integer(nc <- ncol(i)))
437              stop("'i' has no integer column number",              stop(".M.sub.i.2col(): 'i' has no integer column number;\n",
438                   " should never happen; please report")                   " should never happen; please report")
439          if(is.logical(i))          if(is.logical(i))
440              return(.M.sub.i.logical(x,i,j,drop))              return(.M.sub.i.logical(x, i=i)) # call with 2 args!
441          else if(!is.numeric(i) || nc != 2)          else if(!is.numeric(i) || nc != 2)
442              stop("such indexing must be by logical or 2-column numeric matrix")              stop("such indexing must be by logical or 2-column numeric matrix")
443          m <- nrow(i)          m <- nrow(i)
# Line 342  Line 449 
449          unlist(lapply(seq_len(m), function(j) x[i1[j], i2[j]]))          unlist(lapply(seq_len(m), function(j) x[i1[j], i2[j]]))
450    
451      } else stop("nargs() = ", nA,      } else stop("nargs() = ", nA,
452                  ".  Extraneous illegal arguments inside '[ .. ]' ?")                  ".  Extraneous illegal arguments inside '[ .. ]' (i.2col)?")
453  }  }
454  setMethod("[", signature(x = "Matrix", i = "matrix", j = "missing"),# drop="ANY"  setMethod("[", signature(x = "Matrix", i = "matrix", j = "missing"),# drop="ANY"
455            .M.sub.i.2col)            .M.sub.i.2col)
# Line 361  Line 468 
468            })            })
469    
470  ## A[ ij ] <- value,  where ij is (i,j) 2-column matrix :  ## A[ ij ] <- value,  where ij is (i,j) 2-column matrix :
471  ## ----------------   The cheap general method --- FIXME: provide special ones  ## ----------------
472  .M.repl.i.2col <- function (x, i, j, value)  ## The cheap general method --- FIXME: provide special ones; done for Tsparse..
473    ## NOTE:  need '...' below such that setMethod() does
474    ##        not use .local() such that nargs() will work correctly:
475    .M.repl.i.2col <- function (x, i, j, ..., value)
476  {  {
477      nA <- nargs()      nA <- nargs()
478      if(nA == 3) { ##  M [ cbind(ii,jj) ] <- value      if(nA == 3) { ##  M [ cbind(ii,jj) ] <- value  or M [ Lmat ] <- value
479          if(!is.integer(nc <- ncol(i)))          if(!is.integer(nc <- ncol(i)))
480              stop("'i' has no integer column number",              stop(".M.repl.i.2col(): 'i' has no integer column number;\n",
481                   " should never happen; please report")                   " should never happen; please report")
482          else if(!is.numeric(i) || nc != 2)          else if(!is.numeric(i) || nc != 2)
483              stop("such indexing must be by logical or 2-column numeric matrix")              stop("such indexing must be by logical or 2-column numeric matrix")
484          if(is.logical(i)) {          if(is.logical(i)) {
485              message(".M.repl.i.2col(): drop 'matrix' case ...")              message(".M.repl.i.2col(): drop 'matrix' case ...")
486              i <- c(i) # drop "matrix"              ## c(i) : drop "matrix" to logical vector
487              return( callNextMethod() )              return( callGeneric(x, i=c(i), value=value) )
488          }          }
489          if(!is.integer(i)) storage.mode(i) <- "integer"          if(!is.integer(i)) storage.mode(i) <- "integer"
490          if(any(i < 0))          if(any(i < 0))
# Line 406  Line 516 
516            .M.repl.i.2col)            .M.repl.i.2col)
517    
518    
519  setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY",  setReplaceMethod("[", signature(x = "Matrix", i = "missing", j = "ANY",
520                                  value = "Matrix"),                                  value = "Matrix"),
521                   function (x, i, j, value) {                   function (x, i, j, ..., value)
522  ### *TEMPORARY* diagnostic output:                   callGeneric(x=x, , j=j, value = as.vector(value)))
523  ##                  cat("<Matrix1>[i,j] <- <Matrix1>:\n<Matrix1> = x :")  
524  ##                  str(x)  setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "missing",
525  ##                  cat("<Matrix2> = value :")                                  value = "Matrix"),
526  ##                  str(value)                   function (x, i, j, ..., value)
527  ##                  cat("i :"); if(!missing(i)) str(i) else cat("<missing>\n")                   callGeneric(x=x, i=i, , value = as.vector(value)))
 ##                  cat("j :"); if(!missing(j)) str(j) else cat("<missing>\n")  
528    
                      callGeneric(x=x, i=i, j=j, value = as.vector(value))  
                  })  
529  setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY",  setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY",
530                                  value = "Matrix"),                                  value = "Matrix"),
531                   function (x, i, j, value)                   function (x, i, j, ..., value)
532                   callGeneric(x=x, i=i, j=j, value = as.vector(value)))                   callGeneric(x=x, i=i, j=j, value = as.vector(value)))
533    
534    setReplaceMethod("[", signature(x = "Matrix", i = "missing", j = "ANY",
535                                    value = "matrix"),
536                     function (x, i, j, ..., value)
537                     callGeneric(x=x, , j=j, value = c(value)))
538    
539    setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "missing",
540                                    value = "matrix"),
541                     function (x, i, j, ..., value)
542                     callGeneric(x=x, i=i, , value = c(value)))
543    
544  setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY",  setReplaceMethod("[", signature(x = "Matrix", i = "ANY", j = "ANY",
545                                  value = "matrix"),                                  value = "matrix"),
546                   function (x, i, j, value)                   function (x, i, j, value)

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