how can I output an option from menu after the user has selected an option

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mat geek 2019-4-22

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/457715-how-can-i-output-an-option-from-menu-after-the-user-has-selected-an-option

回答： Walter Roberson 2019-4-22

I have a menu that prompts the user to select one of 4 materials to make a bat.

BatMa = menu('choose the bat material','ash','hickory','maple','pine');

After some caluclations for cost, i need to output the following

Producing ## MMM bats a week for ## weeks - ## total bats Where MMM is the material that the user selected.

I know that the menu does not return string, it return the value based on the option. so if option 1 was selected. BatMa = 1. if the user picked maple. BatMat = 3 and so on.

My problem is how can i store that as string if there is away.

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Answer 1

Walter Roberson 2019-4-22

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/457715-how-can-i-output-an-option-from-menu-after-the-user-has-selected-an-option#answer_371606

在 MATLAB Online 中打开

materials = {'ash', 'hicory', 'maple', 'pine'});
BatMa = menu('choose the bat material', materials);
if BatMa == 0; error('cancel'); end
chosen_material = materials{BatMa};
per_week = randi(500);
num_weeks = randi([5 20]);
fprintf('Producing %d %s bats a week for %d weeks - %d total bats\n', per_week, chosen_material, num_weeks, per_week*num_weeks);