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[matrix] Annotation of /pkg/tests/validObj.R
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Annotation of /pkg/tests/validObj.R

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1 : maechler 509 library(Matrix)
2 :    
3 : maechler 516 ### Do all kinds of object creation and coercion
4 : maechler 509
5 : maechler 516 chk.matrix <- function(M) {
6 : maechler 538 ## check object; including coercion to "matrix" :
7 : maechler 516 cl <- class(M)
8 : maechler 538 cat("class ", dQuote(cl), " [",nrow(M)," x ",ncol(M),"]; slots (",
9 : maechler 516 paste(slotNames(M), collapse=","), ")\n", sep='')
10 :     stopifnot(validObject(M),
11 : maechler 538 dim(M) == c(nrow(M), ncol(M)),
12 :     identical(dim(m <- as(M, "matrix")), dim(M))
13 : maechler 516 )
14 :     }
15 :    
16 : maechler 538 ## Make sure errors are signaled
17 :     assertError <- function(expr) {
18 :     d.expr <- deparse(substitute(expr))
19 :     t.res <- try(expr, silent = TRUE)
20 :     if(!inherits(t.res, "try-error"))
21 :     stop(d.expr, "\n\t did not give an error", call. = FALSE)
22 :     invisible(t.res)
23 :     }
24 :    
25 : maechler 612 ### --- "dMatrix" ---
26 :     ## the empty ones:
27 :     chk.matrix(new("Matrix"))
28 :     chk.matrix(new("dMatrix"))
29 :     chk.matrix(new("ddenseMatrix"))
30 :     chk.matrix(new("dgeMatrix"))
31 : maechler 538
32 : maechler 516 ## "dge"
33 : maechler 538 assertError( new("dgeMatrix", Dim = c(2,2), x= 1:4) )# double 'Dim'
34 :     assertError( new("dgeMatrix", Dim = as.integer(c(2,2)), x= 1:4) )# int 'x'
35 :     assertError( new("dgeMatrix", Dim = 2:2, x=as.double(1:4)) )# length(Dim) !=2
36 :     assertError( new("dgeMatrix", Dim = as.integer(c(2,2)), x= as.double(1:5)))
37 :    
38 : maechler 516 chk.matrix(m1 <- Matrix(1:6, ncol=2))
39 :     chk.matrix(m2 <- Matrix(1:7, ncol=3)) # a warning
40 : maechler 579 stopifnot(is(m1) == c("dgeMatrix", "ddenseMatrix", "dMatrix", "Matrix"),
41 :     dim(t(m1)) == 2:3,
42 :     identical(m1, t(t(m1))))
43 :     c.nam <- paste("C",1:2, sep='')
44 :     dimnames(m1) <- list(NULL, c.nam)
45 :     stopifnot(colnames(m1) == c.nam,
46 :     identical(dimnames(t(m1)), list(c.nam, NULL)),
47 :     identical(m1, t(t(m1))))
48 : maechler 538
49 : maechler 620 ## an example of *named* dimnames
50 :     (t34N <- as(unclass(table(x = gl(3,4), y=gl(4,3))), "dgeMatrix"))
51 :     stopifnot(identical(dimnames(t34N),
52 :     dimnames(as(t34N, "matrix"))))
53 : maechler 579
54 : maechler 516 ## "dpo"
55 :     chk.matrix(cm <- crossprod(m1))
56 :     chk.matrix(as(cm, "dsyMatrix"))
57 :     chk.matrix(as(cm, "dgeMatrix"))
58 : maechler 628 chk.matrix(as(cm, "dMatrix"))
59 : maechler 577 try( chk.matrix(as(cm, "Matrix")) )# gives an error: "Matrix" has NULL 'dim()'
60 : maechler 516
61 :     ## Cholesky
62 :     chk.matrix(ch <- chol(cm))
63 :     ## FIXME:
64 :     try( chk.matrix(ch2 <- chol(as(cm, "dsyMatrix"))) ) # should not give an error
65 :     try( chk.matrix(ch3 <- chol(as(cm, "dgeMatrix"))) ) # nor that one
66 : maechler 538
67 :     ### Very basic triangular matrix stuff
68 :    
69 :     assertError( new("dtrMatrix", Dim = c(2,2), x= 1:4) )# double 'Dim'
70 :     assertError( new("dtrMatrix", Dim = as.integer(c(2,2)), x= 1:4) )# int 'x'
71 : maechler 577 ## This caused a segfault (before revision r1172 in ../src/dtrMatrix.c):
72 : maechler 538 assertError( new("dtrMatrix", Dim = 2:2, x=as.double(1:4)) )# length(Dim) !=2
73 :     assertError( new("dtrMatrix", Dim = as.integer(c(2,2)), x= as.double(1:5)))
74 :    
75 :     tr22 <- new("dtrMatrix", Dim = as.integer(c(2,2)), x=as.double(1:4))
76 : maechler 579 tt22 <- t(tr22)
77 :     (tPt <- tr22 + tt22)
78 :     stopifnot(identical(10 * tPt, tPt * 10),
79 :     (t.22 <- (tr22 / .5)* .5)@x == c(1,0,3,4),
80 :     TRUE) ## not yet: class(t.22) == "dtrMatrix")
81 : maechler 538
82 : maechler 579
83 :     ## non-square triagonal Matrices --- should this be forbidden anyway? ---
84 : maechler 538 tru <- new("dtrMatrix", Dim = 2:3, x=as.double(1:6), uplo="L", diag="U")
85 :     trn <- new("dtrMatrix", Dim = 2:3, x=as.double(1:6), uplo="L", diag="N")
86 : maechler 577 tru + trn # a 'dgeMatrix'
87 : maechler 538
88 : maechler 579 as(t(tru),"dgeMatrix")
89 :     as(t(trn),"dgeMatrix")
90 :     as(t(t(tru)), "dgeMatrix")# pretty non sense

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