How to convert a cell array of structures to array of structures

searchNode's nodeinfo is a cell array of structures.
nodeinfo = searchNode(neo4jconn, 'Comment')
nodeinfo.NodeData contains node data. It has a property key 'text'
>> nodeinfo.NodeData{1}.text
ans =
blahblah
Array of structures would be easier to work with and accesses can be vectorized
Please suggest a better than for loop:
s = size(nodeinfo.NodeData, 1);
for i = 1:s
comments(i).text = nodeinfo.NodeData{i}.text;
end
For example to collect text of all comments is now one-liner
text = [comments.text]
How can a cell array of structures be vectorized like that?

 채택된 답변

Guillaume
Guillaume 2016년 12월 21일
As long as the structures in the cells have all the same fields and that these structures in the cells are either scalar or arrays with the same number of rows:
nodedata = [nodeinfo.NodeData{:}];
%or
nodedata = cell2mat(nodeinfo.NodeData);

추가 답변 (1개)

Image Analyst
Image Analyst 2016년 12월 21일

0 개 추천

Will cell2struct() for for you?

댓글 수: 1

ysz
ysz 2016년 12월 21일
편집: ysz 2016년 12월 21일
cell2struct(nodeinfo.NodeData, {'text'}, 2) will return s x1 struct array with field text
whereas for loop creates 1x s array of structures

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카테고리

도움말 센터File Exchange에서 Cell Arrays에 대해 자세히 알아보기

질문:

ysz
2016년 12월 21일

댓글:

ysz
2016년 12월 22일

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