plotting data in a loop

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

Answer 1

[Oleg Komarov]

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

[Amy]

I think that's pretty close except B is calculated inside a while loop while A is determined outside the loop..

[Oleg Komarov]

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]

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]

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]

What do you get with size([abs(XSSUPDEM) abs(RAMPINGGEN(1))])?