Converting 1 and 2 to False and True

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Antonio Lorenzo Sahagun 2021-9-8

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https://ww2.mathworks.cn/matlabcentral/answers/1449214-converting-1-and-2-to-false-and-true

回答： Jan 2021-9-8

Hello!

I've been working on a prediction model where the output is supoosed to be TRUE or FALSE. However the way my model outputs the results is in 1 and 2. Whats the most efficient way to convert the 1 and 2s in the column to TRUE or FALSE. Thanks in advance!

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Answer 1

Image Analyst 2021-9-8

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https://ww2.mathworks.cn/matlabcentral/answers/1449214-converting-1-and-2-to-false-and-true#answer_783359

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If it returns result as a double or an integer, you can do

tf = logical(2 - result);

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Antonio Lorenzo Sahagun 2021-9-8

how to make it come out as 'TRUE' or 'FALSE'

Image Analyst 2021-9-8

编辑：Image Analyst 2021-9-8

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If you want a character array instead of a logical/boolean variable, you can use an if statement

if result == 1
    tf = 'TRUE'; % Or "TRUE" if you want a string type variable.
else
    tf = 'FALSE'; % Or "FALSE" if you want a string type variable.
end

Is that what you want?

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Answer 2

Jan 2021-9-8

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https://ww2.mathworks.cn/matlabcentral/answers/1449214-converting-1-and-2-to-false-and-true#answer_783719

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result = [1; 2; 1; 1; 2];
Pool = {'FALSE', 'TRUE'};
Pool((result == 1) + 1)
ans = 1×5 cell array
    {'TRUE'}    {'FALSE'}    {'TRUE'}    {'TRUE'}    {'FALSE'}