Hello, I am using inputdlg and asking two questions.

Question

Andrew Mackintosh 2019-2-15

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编辑： Geoff Hayes 2019-2-15

I then want to use If and Elseif fuctions from those answers. How do assign the inputs from my question to then do that fuction on them?

So far i have x = inputdlg({'Day of travel', 'Hour of travel'}, 'Peak/Off-Peak', [1 30; 1 30]);

I need to basically have a list of days of the week and hours of travel.

Thanks

Andy

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Geoff Hayes 2019-2-15

Andrew's answer moved here

So this is what ive got now.

x = inputdlg({'Day of travel', 'Hour of travel'}, 'Peak/Off-Peak', [1 30; 1 30])

day = x{1:1}

hour = x{2:2}

if 'Monday', day & hour >= 7 <= 10

'Peak Travel'

elseif 'Monday', day & hour >= 16 <= 18

'Peak Travel'

else

'poop'

end

but im getting Matrix dimentsions must agree. I have looked and think i need to use strcmp to avoid that. but i dont really know how to use it

Geoff Hayes 2019-2-15

在 MATLAB Online 中打开

Andrew - I guess the above is just pseudo-code (since not valid MATLAB syntax). To compare two strings use either strcmp or strcmpi (for case insensitive comparisons). To see if a string matches 'Monday' you would do

if strcmpi(dayOfWeek, 'Monday')
    % do something
end

Note that you will probably need to convert your hour to a number in order to compare it to your 7 and 10 like

hourOfDay = str2double(x{2});
if hourOfDay >= 7 && hourOfDay <= 10
    % peak travel
elseif ...
end

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Answer 1

Geoff Hayes 2019-2-15

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在 MATLAB Online 中打开

The code could be more like

x = inputdlg({'Day of travel', 'Hour of travel'}, 'Peak/Off-Peak', [1 30; 1 30])
day = x{1};
hour = str2double(x{2});
isPeakTravel = false;
if strcmpi(day, 'Monday') && ((hour >= 7 && hour <= 10) || (hour >= 16 && hour <= 18))
    isPeakTravel = true;
end

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Answer 2

Andrew Mackintosh 2019-2-15

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when i use the str2double on the hour when i put in an answer above 10, then it still tells me peak travel when it shouldnt.

this is the code i have written in matlab

x = inputdlg({'Day of travel', 'Hour of travel'}, 'Peak/Off-Peak', [1 30; 1 30])

day = x{1}

hour = str2double(x{2})

if day == 'Monday' & hour >= 7 <= 10

'Peak Travel'

elseif 'Monday', day & hour >= 16 <= 18

'Peak Travel'

else

'poop'

end

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Geoff Hayes 2019-2-15

编辑：Geoff Hayes 2019-2-15

在 MATLAB Online 中打开

The above is not valid syntax for MATLAB. When comparing strings, you need to use either strcmp or strcmpi so that you do not get the "matrix dimensions must match" error. And if you want to see if a number is within a range then you need to compare that number with both the lower and upper bounds of the interval like

hour >= 16 && hour <= 18

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