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MathGroup Archive 2006

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Sorting Rows of a Matrix

  • To: mathgroup at
  • Subject: [mg65089] Sorting Rows of a Matrix
  • From: Gregory Lypny <gregory.lypny at>
  • Date: Tue, 14 Mar 2006 06:00:07 -0500 (EST)
  • Sender: owner-wri-mathgroup at

Hello everyone,

How can I sort the rows of a matrix by using one or more of the  
columns as sort keys just like in a spreadsheet?  For example, if  
matrix M is 12 x 2 with numbers in the first column and unordered  
month numbers in the second, how would I order the rows by month?



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