Basic Examples

Run outer totalistic code 4 for 4 steps :
[◼]
AggregationSystem
[<|"OuterTotalisticCode"4,"Dimension"2|>,CenterArray[1,{1,1}],4]
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{{1,0},{1,0},{1,0},{0,1},{0,1}}
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Run totalistic code 18 for 500 steps from a single 1 on a background of 0s:
ArrayPlot@
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AggregationSystem
[<|"TotalisticCode"18,"Dimension"2|>,CenterArray[1,{1,1}],500]
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Use RulePlot to visualize an outer totalistic rule specification:
RulePlot[CellularAutomaton[<|"OuterTotalisticCode"466,"Dimension"2|>]]
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Scope

Run outer totalistic code 4 for 5000 steps using the default (Moore) neighborhood:
ArrayPlot@
[◼]
AggregationSystem
[<|"OuterTotalisticCode"4,"Dimension"2|>,CenterArray[1,{1,1}],5000]
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Run the same outer totalistic rule for 10000 steps using the von Neumann neighborhood:
ArrayPlot@
[◼]
AggregationSystem
[<|"OuterTotalisticCode"4,"Dimension"2,"Neighborhood"5|>,CenterArray[1,{1,1}],10000]
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Out[]=
An evolution with 3 colors:
ArrayPlot@
[◼]
AggregationSystem
[<|"TotalisticCode"258,"Dimension"2,"Colors"3|>,CenterArray[1,{1,1}],10000]
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A rule specified using growth cases:
An evoluton with a specified color function: