Replacing a part of a list/matrix?
- Subject: [mg2180] Replacing a part of a list/matrix?
- From: olee at ripco.com (O. Lee)
- Date: Thu, 12 Oct 1995 05:59:16 GMT
- Approved: usenet@wri.com
- Distribution: local
- Newsgroups: wri.mathgroup
- Organization: Ripco BBS, Free Trial account (312) 665-0065
- Sender: daemon at wri.com ( )
I am trying to assign a value to a matrix position, such as: pop[[ x,y ]] = value in a module function. When I try manually assigning a value to the matrix position outside of the module, it works. When I run the function with the statement, Mathematica gives me the following error message: Part::setps: {{1, 1, 0, 0}, <<1>>} in assignment of part is not a symbol. Can anyone tell me how to get the assignment statement to work! I isolated the problem in the function to this line and I am sure that what I just described was the problem. I have tried using the command: pop=ReplacePart[pop,value,{x,y}] but it gives me even more error messages! Help me please! I appreciate any help. Thanks. O. Lee