R version 2.11.0 Patched (2010-05-17 r52025)
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ISBN 3-900051-07-0

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> #### Testing  cBind() & rBind()
> 
> library(Matrix)
Loading required package: lattice

Attaching package: 'Matrix'

The following object(s) are masked from 'package:base':

    det

> 
> source(system.file("test-tools.R", package = "Matrix"))# identical3() etc
> 
> ### --- Dense Matrices ---
> 
> m1 <- m2 <- m <- Matrix(1:12, 3,4)
> dimnames(m2) <- list(LETTERS[1:3],
+                      letters[1:4])
> dimnames(m1) <- list(NULL,letters[1:4])
> 
> stopifnot(identical(cBind ( m, 10*m) -> R,
+                     cbind2( m, 10*m))); R
3 x 8 Matrix of class "dgeMatrix"
     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8]
[1,]    1    4    7   10   10   40   70  100
[2,]    2    5    8   11   20   50   80  110
[3,]    3    6    9   12   30   60   90  120
> stopifnot(identical(cBind (m1,100+m1) -> R,
+                     cbind2(m1,100+m1))); R
3 x 8 Matrix of class "dgeMatrix"
     a b c  d   a   b   c   d
[1,] 1 4 7 10 101 104 107 110
[2,] 2 5 8 11 102 105 108 111
[3,] 3 6 9 12 103 106 109 112
> stopifnot(identical(cBind (m1, 10*m2) -> R,
+                     cbind2(m1, 10*m2))); R
3 x 8 Matrix of class "dgeMatrix"
  a b c  d  a  b  c   d
A 1 4 7 10 10 40 70 100
B 2 5 8 11 20 50 80 110
C 3 6 9 12 30 60 90 120
> stopifnot(identical(cBind (m2, m1+m2) -> R,
+                     cbind2(m2, m1+m2))); R
3 x 8 Matrix of class "dgeMatrix"
  a b c  d a  b  c  d
A 1 4 7 10 2  8 14 20
B 2 5 8 11 4 10 16 22
C 3 6 9 12 6 12 18 24
> 
> cBind(m1, MM = -1)
3 x 5 Matrix of class "dgeMatrix"
     a b c  d MM
[1,] 1 4 7 10 -1
[2,] 2 5 8 11 -1
[3,] 3 6 9 12 -1
> rBind(R1 = 10:11, m1)
4 x 4 Matrix of class "dgeMatrix"
    a  b  c  d
R1 10 11 10 11
    1  4  7 10
    2  5  8 11
    3  6  9 12
> cBind(0, Matrix(0+0:1, 1,2), 3:2)# FIXME? should warn - as with matrix()
1 x 4 Matrix of class "dgeMatrix"
     [,1] [,2] [,3] [,4]
[1,]    0    0    1    3
> 
> as(rBind(0, Matrix(0+0:1, 1,2), 3:2),
+    "sparseMatrix")
3 x 2 sparse Matrix of class "dgCMatrix"
        
[1,] . .
[2,] . 1
[3,] 3 2
> cBind(m2, 10*m2[nrow(m2):1 ,])# keeps the rownames from the first
3 x 8 Matrix of class "dgeMatrix"
  a b c  d  a  b  c   d
A 1 4 7 10 30 60 90 120
B 2 5 8 11 20 50 80 110
C 3 6 9 12 10 40 70 100
> 
> (im <- cBind(I = 100, m))
3 x 5 Matrix of class "dgeMatrix"
       I         
[1,] 100 1 4 7 10
[2,] 100 2 5 8 11
[3,] 100 3 6 9 12
> str(im)
Formal class 'dgeMatrix' [package "Matrix"] with 4 slots
  ..@ x       : num [1:15] 100 100 100 1 2 3 4 5 6 7 ...
  ..@ Dim     : int [1:2] 3 5
  ..@ Dimnames:List of 2
  .. ..$ : NULL
  .. ..$ : chr [1:5] "I" "" "" "" ...
  ..@ factors : list()
> (mi <- cBind(m2, I = 1000))
3 x 5 Matrix of class "dgeMatrix"
  a b c  d    I
A 1 4 7 10 1000
B 2 5 8 11 1000
C 3 6 9 12 1000
> str(mi)
Formal class 'dgeMatrix' [package "Matrix"] with 4 slots
  ..@ x       : num [1:15] 1 2 3 4 5 6 7 8 9 10 ...
  ..@ Dim     : int [1:2] 3 5
  ..@ Dimnames:List of 2
  .. ..$ : chr [1:3] "A" "B" "C"
  .. ..$ : chr [1:5] "a" "b" "c" "d" ...
  ..@ factors : list()
> (m1m <- cBind(m,I=100,m2))
3 x 9 Matrix of class "dgeMatrix"
             I a b c  d
A 1 4 7 10 100 1 4 7 10
B 2 5 8 11 100 2 5 8 11
C 3 6 9 12 100 3 6 9 12
> 
> ### --- Diagonal / Sparse - had bugs
> 
> D4 <- Diagonal(4)
> (D4T <- as(D4, "TsparseMatrix"))
4 x 4 sparse Matrix of class "dtTMatrix" (unitriangular)
            
[1,] 1 . . .
[2,] . 1 . .
[3,] . . 1 .
[4,] . . . 1
> D4C <- as(D4T, "CsparseMatrix")
> c1 <- Matrix(0+0:3, 4, sparse=TRUE) ; r1 <- t(c1); r1
1 x 4 sparse Matrix of class "dgCMatrix"
            
[1,] . 1 2 3
> 
> d4 <- rBind(Diagonal(4), 0:3)
> m4 <- cBind(Diagonal(x=-1:2), 0:3)
> c4. <- cBind(Diagonal(4), c1)
> c.4 <- cBind(c1, Diagonal(4))
> r4. <- rBind(Diagonal(4), r1)
> r.4 <- rBind(r1, Diagonal(4))
> assert.EQ.mat(d4, rBind(diag(4),    0:3))
> assert.EQ.mat(m4, cBind(diag(-1:2), 0:3))
> stopifnot(identical(Matrix(cbind(diag(3),0)), cbind2(Diagonal(3),0)),
+ 	  is(d4, "sparseMatrix"), is(m4, "sparseMatrix"),
+ 	  identical(t(d4), cBind(Diagonal(4),     0:3)),
+ 	  identical(t(m4), rBind(Diagonal(x=-1:2), 0:3)))
> 
> ### --- Sparse Matrices ---
> 
> identical4(cBind(diag(4), diag(4)),
+            cBind(D4C, D4C),
+            cBind(D4T, D4C),
+            cBind(D4C, D4T))
[1] FALSE
> nr <- 4
> m. <- matrix(c(0, 2:-1),  nr ,6)
Warning message:
In matrix(c(0, 2:-1), nr, 6) :
  data length [5] is not a sub-multiple or multiple of the number of rows [4]
> M <- Matrix(m.)
> (mC <- as(M, "dgCMatrix"))
4 x 6 sparse Matrix of class "dgCMatrix"
                    
[1,] . -1  .  1  2 .
[2,] 2  . -1  .  1 2
[3,] 1  2  . -1  . 1
[4,] .  1  2  . -1 .
> (mT <- as(M, "dgTMatrix"))
4 x 6 sparse Matrix of class "dgTMatrix"
                    
[1,] . -1  .  1  2 .
[2,] 2  . -1  .  1 2
[3,] 1  2  . -1  . 1
[4,] .  1  2  . -1 .
> stopifnot(identical(mT, as(mC, "dgTMatrix")),
+           identical(mC, as(mT, "dgCMatrix")))
> 
> for(v in list(0, 2, 1:0))
+     for(fnam in c("cBind", "rBind")) {
+         cat(fnam,"(m, v=", deparse(v),"), class(m) :")
+         FUN <- get(fnam)
+         for(m in list(M, mC, mT)) {
+             cat("", class(m),"")
+             assert.EQ.mat(FUN(v, m), FUN(v, m.)) ; cat(",")
+             assert.EQ.mat(FUN(m, v), FUN(m., v)) ; cat(".")
+         }
+         cat("\n")
+     }
cBind (m, v= 0 ), class(m) : dgeMatrix ,. dgCMatrix ,. dgTMatrix ,.
rBind (m, v= 0 ), class(m) : dgeMatrix ,. dgCMatrix ,. dgTMatrix ,.
cBind (m, v= 2 ), class(m) : dgeMatrix ,. dgCMatrix ,. dgTMatrix ,.
rBind (m, v= 2 ), class(m) : dgeMatrix ,. dgCMatrix ,. dgTMatrix ,.
cBind (m, v= c(1L, 0L) ), class(m) : dgeMatrix ,. dgCMatrix ,. dgTMatrix ,.
rBind (m, v= c(1L, 0L) ), class(m) : dgeMatrix ,. dgCMatrix ,. dgTMatrix ,.
> 
> cBind(0, mC); cBind(mC, 0)
4 x 7 sparse Matrix of class "dgCMatrix"
                      
[1,] . . -1  .  1  2 .
[2,] . 2  . -1  .  1 2
[3,] . 1  2  . -1  . 1
[4,] . .  1  2  . -1 .
4 x 7 sparse Matrix of class "dgCMatrix"
                      
[1,] . -1  .  1  2 . .
[2,] 2  . -1  .  1 2 .
[3,] 1  2  . -1  . 1 .
[4,] .  1  2  . -1 . .
> cBind(0, mT); cBind(mT, 2)
4 x 7 sparse Matrix of class "dgCMatrix"
                      
[1,] . . -1  .  1  2 .
[2,] . 2  . -1  .  1 2
[3,] . 1  2  . -1  . 1
[4,] . .  1  2  . -1 .
4 x 7 sparse Matrix of class "dgCMatrix"
                      
[1,] . -1  .  1  2 . 2
[2,] 2  . -1  .  1 2 2
[3,] 1  2  . -1  . 1 2
[4,] .  1  2  . -1 . 2
> cBind(diag(nr), mT)
4 x 10 sparse Matrix of class "dgCMatrix"
                            
[1,] 1 . . . . -1  .  1  2 .
[2,] . 1 . . 2  . -1  .  1 2
[3,] . . 1 . 1  2  . -1  . 1
[4,] . . . 1 .  1  2  . -1 .
> stopifnot(identical(t(cBind(diag(nr),   mT)),
+                       rBind(diag(nr), t(mT))))
> (cc <- cBind(mC, 0,7,0, diag(nr), 0))
4 x 14 sparse Matrix of class "dgCMatrix"
                                    
[1,] . -1  .  1  2 . . 7 . 1 . . . .
[2,] 2  . -1  .  1 2 . 7 . . 1 . . .
[3,] 1  2  . -1  . 1 . 7 . . . 1 . .
[4,] .  1  2  . -1 . . 7 . . . . 1 .
> stopifnot(identical3(cc, cBind(mT, 0,7,0, diag(nr), 0),
+                      as( cBind( M, 0,7,0, diag(nr), 0), "dgCMatrix")))
> 
> cBind(mC, 1, 100*mC, 0, 0:2)
4 x 15 sparse Matrix of class "dgCMatrix"
                                                      
[1,] . -1  .  1  2 . 1   . -100    .  100  200   . . .
[2,] 2  . -1  .  1 2 1 200    . -100    .  100 200 . 1
[3,] 1  2  . -1  . 1 1 100  200    . -100    . 100 . 2
[4,] .  1  2  . -1 . 1   .  100  200    . -100   . . .
> cBind(mT, 1, 0, mT+10*mT, 0, 0:2)
4 x 16 sparse Matrix of class "dgCMatrix"
                                                  
[1,] . -1  .  1  2 . 1 .  . -11   .  11  22  . . .
[2,] 2  . -1  .  1 2 1 . 22   . -11   .  11 22 . 1
[3,] 1  2  . -1  . 1 1 . 11  22   . -11   . 11 . 2
[4,] .  1  2  . -1 . 1 .  .  11  22   . -11  . . .
> 
> ## logical (sparse) - should remain logical :
> L5 <- Diagonal(n = 5, x = TRUE); v5 <- rep(x = c(FALSE,TRUE), length = ncol(L5))
> stopifnot(is(show(rBind(L5,v5)), "lsparseMatrix"),
+ 	  is(show(cBind(v5,L5)), "lsparseMatrix"),
+ 	  is(rBind(L5, 2* v5), "dsparseMatrix"),
+	  is(cBind(2* v5, L5), "dsparseMatrix"))
6 x 5 sparse Matrix of class "lgCMatrix"
            
   | . . . .
   . | . . .
   . . | . .
   . . . | .
   . . . . |
v5 . | . | .
5 x 6 sparse Matrix of class "lgCMatrix"
     v5          
[1,]  . | . . . .
[2,]  | . | . . .
[3,]  . . . | . .
[4,]  | . . . | .
[5,]  . . . . . |
> 
> ## print() / show() of  non-structural zeros:
> (m <- Matrix(c(0, 0, 2:0), 3, 5))
3 x 5 sparse Matrix of class "dgCMatrix"
              
[1,] . 1 . . 2
[2,] . . 2 . 1
[3,] 2 . 1 . .
> (m2 <- cBind(m,m))
3 x 10 sparse Matrix of class "dgCMatrix"
                        
[1,] . 1 . . 2 . 1 . . 2
[2,] . . 2 . 1 . . 2 . 1
[3,] 2 . 1 . . 2 . 1 . .
> (m4 <- rBind(m2,m2))
6 x 10 sparse Matrix of class "dgCMatrix"
                        
[1,] . 1 . . 2 . 1 . . 2
[2,] . . 2 . 1 . . 2 . 1
[3,] 2 . 1 . . 2 . 1 . .
[4,] . 1 . . 2 . 1 . . 2
[5,] . . 2 . 1 . . 2 . 1
[6,] 2 . 1 . . 2 . 1 . .
> diag(m4)
[1] 0 0 1 0 1 2
> for(i in 1:6) {
+     m4[i, i ] <- i
+     m4[i,i+1] <- 0
+ }
> m4 ## now show some non-structural zeros:
6 x 10 sparse Matrix of class "dgCMatrix"
                        
[1,] 1 . . . 2 . 1 . . 2
[2,] . 2 . . 1 . . 2 . 1
[3,] 2 . 3 . . 2 . 1 . .
[4,] . 1 . 4 . . 1 . . 2
[5,] . . 2 . 5 . . 2 . 1
[6,] 2 . 1 . . 6 . 1 . .
> 
> 
> cat('Time elapsed: ', proc.time(),'\n') # for ``statistical reasons''
Time elapsed:  2.454 0.072 2.626 0 0 
>