I need to work out the area of all residential areas. I tried using polyarea but cant get it to work.

The code all works appart from the last 3 (talking about area.) I tried using polyarea but error comes up saying too many input arguements.

RoomTotalResidential =0;
for c = 1:1:sBuilding(n).bNoOfFloors
    disp("--------------FLOOR "+c+" --------------")
    subplot(sBuilding(n).bNoOfFloors,1,c);
    title(sprintf('Floor %d',c));
    sFloor(c).NoOfResidentialSpaces = input('Enter Number Of Residential spaces:');
    FloorTotalResidential = sFloor(c).NoOfResidentialSpaces;
    RoomTotalResidential = RoomTotalResidential + FloorTotalResidential;
    if sFloor(c).NoOfResidentialSpaces > 0
        for i = 1:1:sFloor(c).NoOfResidentialSpaces
            sFloor(c).resident(i).width = input("Enter width of Residential room " +i+" on floor "+c+":");
            sFloor(c).resident(i).length = input("Enter length of Residential room "+i+" on floor "+c+":");
            choice1 = questdlg('Would you like to draw a floorplan?','question','yes','no','yes');
            switch choice1
                case 'no'  
                    disp('No floorplan')
                case 'yes'
                    locationx=input("Please specify bottom left corner X coordinate of residential room "+i+" on floor "+c+":");
                    locationy=input("Please specify bottom left corner Y coordinate of residential room "+i+" on floor "+c+":");
                    rectangle('Position',[locationx locationy sFloor(c).resident(i).width sFloor(c).resident(i).length]);
                    axis ([0 100 0 100]);
                    hold on
                    area = polyarea(locationx,locationy,sFloor(c).resident(i).width,sFloor(c).resident(i).length);
                    disp('The area is:'+area);
            end
        end
    end

[Walter Roberson]

area = sFloor(c).resident(i).width * sFloor(c).resident(i).length

polyarea() is not going to be to your advantage unless you have more complicated shapes.

[Jamie Hogan]

Thank you! this fixed it.