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calculate_signal_cluster_groups.m
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calculate_signal_cluster_groups.m
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function [total_signal,auxiliary_signals,order_n_signals,batch_name] ...
= calculate_signal_cluster_groups(System,Method,Nuclei,clusters,OutputData)
methyl_file_name = [OutputData,'_methyls.csv'];
analyze_methyls(Nuclei,methyl_file_name)
partition_file_name = [OutputData,'_partition_clusters.txt'];
[groups_ids,n_groups,group_names] ...
= form_methyl_cluster_groups(Method,Nuclei,clusters,partition_file_name);
batch_name = [];
if Method.use_calculate_signal_cluster_groups_statistics_only
total_signal = [];
auxiliary_signals = [];
order_n_signals = [];
return;
end
[total_signal,auxiliary_signals,order_n_signals] =...
calculate_partitioned_signal(System,Method,Nuclei,clusters,OutputData,...
groups_ids,n_groups,group_names);
if Method.use_calculate_signal_cluster_groups_zero_tunnel_splitting
Nuclei.methylTunnelingSplitting = 0*Nuclei.methylTunnelingSplitting;
OutputData0 = [OutputData,'_Hamiltonian_no_tunneling'];
no_nut_sig = calculate_partitioned_signal(...
System,Method,Nuclei,clusters,OutputData0,...
groups_ids,n_groups,group_names);
T = array2table(no_nut_sig.');
T.Properties.VariableNames(1) = {'signal'};
writetable(T,[OutputData0, '.csv']);
end
end
%-------------------------------------------------------------------------------
function [total_signal,auxiliary_signals,order_n_signals] =...
calculate_partitioned_signal(System,Method,Nuclei,clusters,OutputData,...
groups_ids,n_groups,group_names)
[total_signal,auxiliary_signals,order_n_signals] ...
= calculate_signal_default(System,Method,Nuclei,clusters);
partition_signals = ones(numel(total_signal),n_groups);
for cluster_size = 1:Method.order
for ii = 1:numel(groups_ids{cluster_size})
assert(abs(auxiliary_signals{cluster_size}(1,ii)-1)<1e-12,...
'Auxiliary signal is not normalized.');
id = groups_ids{cluster_size}(ii);
partition_signals(:,id) = partition_signals(:,id)...
.*auxiliary_signals{cluster_size}(:,ii);
end
end
save_name = [OutputData,'_methyl_partitions.csv'];
save_partition_signals(save_name,partition_signals,group_names);
total_signal_grps = prod(partition_signals,2).';
assert( max(max(abs(total_signal_grps-total_signal))) <1e-9 );
end
%-------------------------------------------------------------------------------
function save_partition_signals(save_name,partition_signals,group_names)
n_parts = size(partition_signals,2);
T = array2table(partition_signals);
T.Properties.VariableNames(1:n_parts) = group_names(1:n_parts);
writetable(T,save_name);
end
%-------------------------------------------------------------------------------
function [group_ids,n_groups,group_names] ...
= form_methyl_cluster_groups(Method,Nuclei,clusters,file_name)
if ~Method.useMethylPseudoParticles || Method.order >= 6
error(['Grouping by methyl group assumes that each cluster contains ',...
'at most only one methyl.']);
end
max_size = numel(clusters);
group_ids = cell(max_size,1);
group_names = cell(max_size,1);
n_groups = 0;
group_dictionary = dictionary(string([]),[]);
% Identify cluster groups.
for cluster_size = 1:max_size
n_clusters = size(clusters{cluster_size},1);
group_ids{cluster_size} = zeros(n_clusters,1);
for icluster = 1:n_clusters
cluster = clusters{cluster_size}(icluster,:);
methyl_ids = unique(Nuclei.MethylID(cluster));
methyl_ids = methyl_ids(methyl_ids > 0);
key = sprintf('%d,',methyl_ids);
if group_dictionary.isKey(key)
id = group_dictionary(key);
else
n_groups = n_groups + 1;
id = n_groups;
group_names{id} = get_partition_name(methyl_ids,Nuclei);
group_dictionary(key) = id;
end
group_ids{cluster_size}(icluster) = id;
end
assert(~any(group_ids{cluster_size}==0),...
'Unable to partition clusters.');
end
% Save statistics.
fileID = fopen(file_name,'w');
for igroup = 1:n_groups
num_clusters = 0;
for cluster_size = 1:max_size
num_clusters = num_clusters + sum(group_ids{cluster_size}==igroup);
end
name = group_names{igroup};
fprintf(fileID,'#[%s, n = %i]\n',name,num_clusters);
for cluster_size = 1:max_size
n_clusters = size(clusters{cluster_size},1);
for icluster = 1:n_clusters
cluster = clusters{cluster_size}(icluster,:);
line = [ '[', sprintf('%d,',cluster) ,';'];
line(end-1) = ']';
fprintf(fileID,'%s\n',line);
end
end
fprintf(fileID,'\n');
end
fclose(fileID);
end
%-------------------------------------------------------------------------------
function name = get_partition_name(methyl_ids,Nuclei)
if isempty(methyl_ids) || all(methyl_ids == 0)
name = 'bath';
return;
end
name = '';
for id = methyl_ids
if id==0, continue; end
hydrogens = find(Nuclei.MethylID == id);
assert(numel(hydrogens)==3,...
'Methyls must have three hydrogens.');
methyl_str = sprintf('methyl_%i_%i_%i',...
hydrogens(1),hydrogens(2),hydrogens(3));
if isempty(name)
name = methyl_str;
else
name = [name,'_',methyl_str];
end
end
end