function AddPopulation(varargin)
global Network
if(~isfield(Network,'Population'))
iPop = 1;
else
iPop = length(Network.Population) + 1;
end
C = varargin;
[n,e] = FindValue(C,'nCell','n',1);
if(e==0)
Network.Population(iPop).nCell = n;
else
error('nCell undefined for population');
end
if(iPop == 1)
Network.Population(iPop).Offset = 0;
Network.TargetsPerCell = cell(n,1);
else
Network.Population(iPop).Offset = Network.Population(iPop-1).Offset + Network.Population(iPop-1).nCell;
Network.TargetsPerCell = [Network.TargetsPerCell; cell(n,1)];
end
[s,e] = FindValue(C,'Name','s',1);
if(e>0)
error('Population name not provided correctly')
end
Network.Population(iPop).Name = s;
[t,e] = FindValue(C,'Type','s',1);
switch(t)
case('LeakyIntegrate')
tID = 0;
np = 4;
ns = 1;
pLabel = {'C','VRest','VThreshold','VReset'};
sLabel = {'V'};
case('Izhikevich')
tID = 1;
np = 5;
ns = 2;
pLabel = {'I','a','b','c','d'};
sLabel = {'V','w'};
case('Poisson')
tID = 2;
np = 1;
ns = 1;
pLabel = {'Lambda'};
sLabel = {};
otherwise
error('System of unknown type')
end
Network.Population(iPop).Type = tID;
for ip = 1:length(pLabel)
[p, e] = FindValue(C,pLabel{ip},'n',n);
if(e > 0)
error(['Error for parameter: ' pLabel{ip} ', error code: ' num2str(e)])
end
Network.Population(iPop).Param(:,ip) = p;
end
% Add zeros for the remaining parameters that were not required:
if(isfield(Network.Population(iPop),'Param'))
Network.Population(iPop).Param = [Network.Population(iPop).Param, zeros(n,np-length(pLabel))];
else
Network.Population(iPop).Param = zeros(n,np);
end
for is = 1:length(sLabel)
[s, e] = FindValue(C,sLabel{is},'n',n);
if(e > 0)
error(['Error for state: ' sLabel{is}])
end
Network.Population(iPop).State(:,is) = s;
end
% Add zeros for the remaining state variables that were not required:
if(isfield(Network.Population(iPop),'State'))
Network.Population(iPop).State = [Network.Population(iPop).State, zeros(n,ns-length(sLabel))];
else
Network.Population(iPop).State = zeros(n,ns);
end
% Handle positions next:
pID = find(strcmp('Position',C));
mpID = find(strcmp('MakePosition',C));
% Check for non-unique definitions:
if(numel([pID, mpID]) == 0)
error('No position input provided')
end
if(numel([pID, mpID])>1)
error('Multiple position inputs provided')
end
% Position is given directly
if(~isempty(pID))
if(numel(C)>pID)
pos = C{pID+1};
if(~isnumeric(pos))
error('Positions must be in numeric format')
end
if(size(pos,1) ~= n)
error('Number of positions must equal number of cells')
end
if(size(pos,2) > 3)
warning('Number of dimensions exceeds 3. Latter columns are ignored')
Network.Population(iPop).Position = pos(:,[1:3]);
else
d = size(pos,2);
Network.Population(iPop).Position = [pos, zeros(n,3-d)];
end
else
error('No argument provided for field ''Position''')
end
end