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srcdir <- file.path(Sys.getenv("SRCDIR"), "eval-fns.R")
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srcdir <- file.path(Sys.getenv("SRCDIR"), "eval-fns.R")
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source(if(file.exists(srcdir)) srcdir else "./eval-fns.R", echo = TRUE)
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source(if(file.exists(srcdir)) srcdir else "./eval-fns.R", echo = TRUE)
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rm("srcdir")
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rm("srcdir")
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require("Matrix")
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require("Matrix", .Library)
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D5. <- Diagonal(x = 5:1)
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D5. <- Diagonal(x = 5:1)
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D5N <- D5.; D5N[5,5] <- NA
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D5N <- D5.; D5N[5,5] <- NA
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## a subset/version of example(Matrix) : --------------------------------
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## a subset/version of example(Matrix) : --------------------------------
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(Z32 <- Matrix(0, 3, 2))              # 3 by 2 matrix of zeros -> sparse
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(Z32 <- Matrix(0, 3, 2))              # 3 by 2 matrix of zeros -> sparse