src/test/scripts/functions/rewrite/RewriteRemoveUnnecessaryBinaryOperation.R

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#
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
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args <- commandArgs(TRUE)

# Set options for numeric precision
options(digits=22)

# Load required libraries
library("Matrix")
library("matrixStats")

# Read matrix and operation type
X = as.matrix(readMM(paste(args[1], "X.mtx", sep="")))
type = as.integer(args[2])

# Perform operations
if(type==1){
    R = X/1
} else if(type==2){
    R = X*1
} else if(type==3){
    R = 1*X
} else if(type==4){
    R = X-0
} else if(type==5){
    R = -1*X
} else if(type==6){
    R = X * -1
}

#Write result matrix R
writeMM(as(R, "CsparseMatrix"), paste(args[3], "R", sep=""));