From: John Nott <JNott@...>
Date: 2007-09-26T20:50:01+09:00
Subject: IntegreMatrix

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Hello All,
I have put together some code (using a book as a guide!!) to create an in=
teger matrix as follows:
=20
class IntegerMatrix
=20
=20def initialize(rows,cols)
=20@rows, @cols =3D rows, cols
=20@data =3D (0...rows).map{(0...cols).map{0}}
end
=20
=20attr_reader :rows, :cols
=20
=20def dimensions
=20[self.rows,self.cols]
=20end
=20
=20def get(rowidx, colidx)
=20 @data[rowidx][colidx]
=20end
=20alias [] get
=20
=20def put(rowidx,colidx,value)
=20raise TypeError "non integer value in IntegerMatrix" unless
=20 value.is_a? Integer
=20 @data[rowidx][colidx]=3Dvalue
=20 end
=20 alias []=3D put
=20 end
=20=20
def to_s
=20(0...self.rows).map{|r|
=20(0...self.cols).map{|c| "%5d"%self[r,c]}.join(" ")
=20}.join("\n")
end
=20
testm =3D IntegerMatrix.new(2,3)
testm[0,0]=3D68; testm[0,1]=3D94; testm[0,2]=3D-2
testm[1,0]=3D11; testm[1,1]=3D7; testm[1,2]=3D50
=20
puts testm
=20
and produces my test matrix as follows:
=20
68    94    -2
11    7    50
=20
my problem is how do i take it to the next level so that it will read a .=
csz file and populate the matrix with its contents?.. is there a straight=
=20forward way to do this?.. or does anyone know any good websites/resour=
ces that can help with this.
=20
Cheers!
=20
- John
=20

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