look up specific value in a function based on a text input in matlab

You can look up a specific value in a function based on a text input in MATLAB by using a lookup table or a switch statement. Here's an example:

main.m
% Define the function with the lookup values
function result = lookupFunction(input)
    lookupTable = containers.Map({'apple', 'banana', 'orange'}, [1, 2, 3]);
    % Or you can use a switch statement
    % switch input
    %      case 'apple'
    %          result = 1;
    %      case 'banana'
    %          result = 2;
    %      case 'orange'
    %          result = 3;
    %     otherwise
    %         result = -1; % return -1 for invalid input
    % end
    if isKey(lookupTable, input)
        result = lookupTable(input);
    else
        result = -1; % return -1 for invalid input
    end
end

% Example usage
input = 'banana';
output = lookupFunction(input);
disp(output);
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This example demonstrates a function called lookupFunction that takes a text input and returns a specific value based on that input. In this case, the function uses a lookup table (a containers.Map object) to map input strings to corresponding values. The example lookup table maps 'apple' to 1, 'banana' to 2, and 'orange' to 3.

You can also use a switch statement instead of a lookup table as shown in the commented section of the code.

Hope this helps!

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