I am trying to set part of a Doubly-indexed list aInitialPopulation to cNumHeg. Specifically I am trying to set the 3rd part of the list aInitialPopulatiom[[cNodeNumber]] to cNumHeg.
My (attempted) implementation is shown below, any help as to why it isn't working would be appreciated.
cNumNode = 10; cNumHeg = 3; aInitialPopulation = initialPopulation[20, 10];(*A user defined function which creates a 20 by 10 list/array*) addHeg[aPopulation_, aNode_, aNumHeg_] := (aTemp = aPopulation[[aNode]]; aTemp[] = aNumHeg; aPopulation[[aNode]] = aTemp); addHeg[aInitialPopulation, cNumNode, cNumHeg]
When I do this I get an error of the form:
Set::setps: in the part assignment is not a symbol.
It seems to be that I am trying to access part of a symbol rather than an array. I am not sure why this is - the code to modify the array works when it is not contained within a function definition. Any help much appreciated. Many thanks in advance.