remove rows if they contain ?

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Catherine Branter
Catherine Branter 2019-2-23
编辑： Image Analyst 2019-2-23
I want to remove all rows that contain ?
The issue is that ? could be in any of my 14 columns
I tried this code ("data" is the name of my table here)
data(ismember(data,'?'),:)=[];
but i get the error
Error using tabular/ismember (line 37)
A and B must both be tables, or both be timetables.

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回答（1 个）

Image Analyst
Image Analyst 2019-2-23
编辑：Image Analyst 2019-2-23
This works:
column1 = {'a'; 'b'; '?'; 'c'; 'd'}
column2 = {'a'; '?'; 'x'; 'c'; 'd'}
data = table(column1, column2)
% Now that we have sample data, delete any column with a '?' in it.
rowsToDelete = any(contains(data{:, :} , '?'), 2)
data(rowsToDelete, :) = []

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