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How to get the logical index 1 if the cell is missing?

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Smithy
Smithy 2022-10-21
编辑： Stephen23 2023-1-3
Hello everybody,
I have the 2x1 cell array and (2,1) is {1×1 missing}.
To get the logical index 1 about data(2,1) missing, I tried
ismissing, isempty, and contains functions but all does not work...
Please let me know how to get the logical index 1 about the cell(2,1) is missing?
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
clear; % Erase all existing variables. Or clearvars if you want.
load input.mat
% I tried below but all does not work
ismissing(data(2,1))
isempty(data(2,1))
contains(data(2,1),'missing')
% to get the logical index 1 about data(2,1) missing, how to do it...

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采纳的回答

Walter Roberson
Walter Roberson 2022-10-21
编辑：Walter Roberson 2022-10-21
cellfun(@(M) any(ismissing(M)), data)
or if you just want to test the one,
any(ismissing(data{2,1}))
Note that missing is a value that can appear as entries in arrays, so it is possible for an array to have some missing entries and some non-missing entries. The above code checks for cells in which at least one entry is missing, but does not report which of the array elements are missing.

更多回答（1 个）

David Hill
David Hill 2022-10-21
Ran in:
load input.mat
ismissing(data{2})
ans = logical
1

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