How to find values greater than a number in a cell of empty cells?
21 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hello everyone,
I am trying to find the values greater than '0' in a cell array of few empty cells eg. D = {[],[],[3],[],[],[]}?
I have tried multiple options like
- find(D{:}>=0)
- [row,col] = cellfun(@(c) find(c >= 0), D, 'uniform', false)
- for i = 1 : length(Match), idx(i) = find(Match{1,i}>=0);end
- ismember(D,3);
But nothing has worked so far?
All the best,
Thanks
0 Kommentare
Akzeptierte Antwort
Adam Danz
am 8 Nov. 2019
Bearbeitet: Adam Danz
am 9 Nov. 2019
D = {[],[],3,[], -2, 0, [], 1, 6, []};
idx = cellfun(@(x)~isempty(x) && x >= 0, D); % logical index
If you need the subscript index,
idx = find(cellfun(@(x)~isempty(x) && x >= 0, D)); % subscript index
If D contains non-scalars,
D = {[],[],3,[], -2, 0, [], 1, 6, [], -2:2, magic(4)-8};
idx = cellfun(@(x)~isempty(x) & x >= 0, D, 'UniformOutput', false);
but now idx is a cell-array so to find the values >= 0 in element n of D, idx{n}.
10 Kommentare
Adam Danz
am 9 Nov. 2019
Bearbeitet: Adam Danz
am 9 Nov. 2019
This line sort(cellfun(@(x)x(1),C)) merely extracts the first value within each element of the cell array C. The elements of C can be scalar, vectors (rows or columns), matricies, multi-dim arrays, any numeric format. But when in comes across an empty element it throws an error because there is no first-value to extract.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Data Types finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!