Adding a counter to a loop

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Mohammad Dabbagh
Mohammad Dabbagh 2021-6-23
评论： Mathieu NOE 2021-6-24
Hi there,
I was wondering if anyone could do me a favor and let me know why my added counters blow does not work!
Thak you so much in advance.
for time = 1 : 8760
CountWintW=0;
CountWintE=0;
CountWintS=0;
CountWintN=0;
for WinNum=1:4
if AbsRad(time,WinNum) >= 0.0001
NewSHGC(WinNum) = shgc.open;
NewWinR(WinNum) = 1/U_factor.open;
else
NewSHGC(WinNum) = shgc.close;
NewWinR(WinNum) = 1/U_factor.close;
if WinNum ~=1
CountWintW = CountWintW+1;
elseif WinNum ~=2
CountWintE = CountWintE+1;
elseif WinNum ~=3
CountWintS = CountWintS+1;
elseif WinNum ~=4
CountWintN = CountWintN+1;
end
end
end
end
  3 个评论
显示 1更早的评论
Rik
Rik 2021-6-23
You clearly didn't try running your code line by line with the debugger.
If you had done so, you would have spotted 2 issues:
  1. every time step you're resetting the counters
  2. because you're using ~=, the third option will never be reached (if WinNum is 1 the second counter will increment, if WinNum is any value not equal to 1 the first counter will increment)
It also looks like it would make sense to use a vector and use WinNum as the index:
CountWin=zeros(1,4);
for time = 1 : 8760
[...]
CountWin(WinNum)=CountWin(WinNum)+1;

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采纳的回答

Mathieu NOE
Mathieu NOE 2021-6-23
hello
IMHO, the initialisation of the counters should be done BEFORE the first for loop
CountWintW=0;
CountWintE=0;
CountWintS=0;
CountWintN=0;
for time = 1 : 8760
for WinNum=1:4
if AbsRad(time,WinNum) >= 0.0001
NewSHGC(WinNum) = shgc.open;
NewWinR(WinNum) = 1/U_factor.open;
else
NewSHGC(WinNum) = shgc.close;
NewWinR(WinNum) = 1/U_factor.close;
if WinNum ~=1
CountWintW = CountWintW+1;
elseif WinNum ~=2
CountWintE = CountWintE+1;
elseif WinNum ~=3
CountWintS = CountWintS+1;
elseif WinNum ~=4
CountWintN = CountWintN+1;
end
end
end
end

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