does a cell vector contains only NaN?

2012 8 10
2 个回答
回答已采纳
13 次查看（30 天）

0 个投票

Dear all,
I have
A={
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]
[NaN]}
and I want to find a command that will tell me if A contains only NaN.
I tried
all(isnan(cell2mat(A))), 2) == NaN
but it does not work
cheers

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 采纳的回答

Sean de Wolski
Sean de Wolski 2012-8-10

0 个投票

cisnan = @(C)all(cellfun(@(x)all(isnan(x(:))),C));
cisnan(your_cell)

更多回答（1 个）

Wayne King
Wayne King 2012-8-10
编辑：Wayne King 2012-8-10

0 个投票

There are many ways:
nanarray = cell2mat(cellfun(@isnan,A,'uni',0));
length(nanarray>0)
% the above gives you the answer -- for example
if (length(nanarray>0) > 0)
disp('The cell array contains NaNs')
end

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