plotting data in a loop

Amy
2011 7 23
1 个回答
3 次查看（30 天）

0 个投票

I'm trying to plot a bar graph that shows a value that's fixed at the beginning of the loop (XSSUPDEM) and in the same graph show how another series is growing (RAMPINGGEN(1)).
while XSSUPDEM + RAMPINGGEN(1)<0
OFFSIZE=SUPSTACK(ROWVALSUP,5);
RAMPRATE=SUPSTACK(ROWVALSUP,8);
MINRAMP=OFFSIZE/RAMPRATE;
if MINRAMP>10 && RAMPRATE*10 < abs(XSSUPDEM + RAMPINGGEN(1))
NUMINTERVALS=floor(MINRAMP/10);
for j=1:NUMINTERVALS;
RAMPINGGEN(j)=RAMPINGGEN(j)+RAMPRATE*10;
end
RAMPINGGEN(j+1)=RAMPINGGEN(j+1)+(OFFSIZE-((NUMINTERVALS)*(RAMPRATE*10)));
elseif MINRAMP>10 && RAMPRATE*10 > abs(XSSUPDEM+ RAMPINGGEN(1))
RAMPINGGEN(1)=RAMPINGGEN(1)+abs(XSSUPDEM + RAMPINGGEN(1));
elseif MINRAMP<10 && OFFSIZE < abs(XSSUPDEM + RAMPINGGEN(1))
RAMPINGGEN(1)=RAMPINGGEN(1)+OFFSIZE;
elseif MINRAMP<10 && OFFSIZE > abs(XSSUPDEM + RAMPINGGEN(1))
RAMPINGGEN(1)=RAMPINGGEN(1)+abs(XSSUPDEM + RAMPINGGEN(1));
bar([abs(XSSUPDEM) abs(RAMPINGGEN(1))], 'stacked');
end

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回答（1 个）

Oleg Komarov
Oleg Komarov 2011-7-23

0 个投票

Is this what you're trying to achieve?
A = rand(10,1);
B = rand(10,1);
hh = bar([A B], 'stacked');
for n = 1:10
set(hh(2),'Ydata', get(hh(2),'Ydata') + rand(1,10));
pause(.2)
end

5 个评论
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Amy
Amy 2011-7-23
I think that's pretty close except B is calculated inside a while loop while A is determined outside the loop..
Oleg Komarov
Oleg Komarov 2011-7-23
It doesn't matter if it's a for or while.
To be able to "grow" B, you have to call bar outside the loop and then set B's Ydata inside the loop otherwise it will replot the bar at each iteration.
Amy
Amy 2011-7-23
I get an error because XSSUPDEM which is calculated outside the loop is a single data point while RAMPINGGEN is an array..Any hints? I'm stumped
Amy
Amy 2011-7-23
Attempted to access hh(2); index out of
bounds because numel(hh)=1.
Error in ==> OverdispatchV2 at 206
set(hh(2),'YData', get(hh(2),'YData'));
Oleg Komarov
Oleg Komarov 2011-7-23
What do you get with size([abs(XSSUPDEM) abs(RAMPINGGEN(1))])?

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Amy
Amy
2011-7-23

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