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Potential bug fix for a corner case in find() and additional method #7

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Potential bug fix for a corner case in find() and additional method #7

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909b089
Add function to return all nodes at branch points.
Sep 21, 2017
5089bfe
Find will fail if obj.Node cell array contains empty values.
Apr 9, 2018
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1 change: 1 addition & 0 deletions @tree/find.m
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
% I = FIND(T,K,'last') returns at most the last K indices corresponding
% to the nonzero entries of the tree T.
%
obj.Node(cellfun(@isempty, obj.Node)) = {false};
val = [ obj.Node{:} ] ;
I = find(val, varargin{:});
end
11 changes: 11 additions & 0 deletions @tree/findbranchpoints.m
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@@ -0,0 +1,11 @@
function indices = findbranchpoints(obj, varargin)
%FIND Find indices of nodes with more than one child.
% I = FINDBRANCHPOINTS(T) returns the linear indices corresponding to the
% nonzero entries of the tree T.

indices = find( ...
arrayfun(@(x) numel(obj.getchildren(x)), ...
obj.nodeorderiterator(), ...
'UniformOutput', true) > 1);

end