Taking a string input and transferring it to a integer

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Jacob Belouin 2021-10-14

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评论： DGM 2021-10-15

I am trying to write a script to calculate the nominal kohms of a resistor. I need to create a menu of 10 colors and be able to assign those colors a number that I can use to create the final equasion. The numbers are integers ranging from 0 to 9 and there are three user selected inputs. Thanks in advance!

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DGM 2021-10-14

If you really insist on doing this with dialogs, you can use listdlg.

https://www.mathworks.com/help/matlab/ref/listdlg.html

Otherwise, build a uifigure or something

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Answer 1

DGM 2021-10-14

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https://ww2.mathworks.cn/matlabcentral/answers/1564071-taking-a-string-input-and-transferring-it-to-a-integer#answer_808966

编辑：DGM 2021-10-15

在 MATLAB Online 中打开

Meh.

numbands = 4;
colornames = {'black','brown','red','orange','yellow','green','blue','violet','gray','white','gold','silver'};
tolerancemap = [1 2 0.5 0.25 0.1 0.05 5 1]; % in percent
multmap = [0:7 -1 -2];
digits = zeros(1,numbands-2);
for vb = 1:numbands
    ps = sprintf('Color Band %d',vb);
    if vb == numbands
        %tol = listdlg('promptstring',ps,'selectionmode','single','liststring',colornames([2 3 6:9 11 12]));
        tol = menu(ps,colornames([2 3 6:9 11 12]));
    elseif vb == numbands-1
        %multiplier = listdlg('promptstring',ps,'selectionmode','single','liststring',colornames([1:8 11 12]));
        multiplier = menu(ps,colornames([1:8 11 12]));
    else
        %digits(vb) = listdlg('promptstring',ps,'selectionmode','single','liststring',colornames);
        digits(vb) = menu(ps,colornames);
    end
end
value = str2double(sprintf('%d',digits-1)) * 10^multmap(multiplier);
tol = tolerancemap(tol);
if value >= 1E6
    fprintf('The resistor value is %.2f Mohms, with a tolerance of %.2f%%\n',value/1E6,tol)
elseif value >= 1E3
    fprintf('The resistor value is %.2f kohms, with a tolerance of %.2f%%\n',value/1E3,tol)
else
    fprintf('The resistor value is %.2f ohms, with a tolerance of %.2f%%\n',value,tol)
end

Now you can add the tempco band too.

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Jacob Belouin 2021-10-15

Understanding how you approached this now, its a way more efficent method but my Professor is telling me it has to use the menu command rather than listdlg. I dont need the whole answer, but is there a way to index arrays within the menu command?