MATLAB: Grid

casegrid minorgrid onguihold onplot

Hello!

Quick question. My GUI has "axes1"(graph), this graph refreshes if I click a certain PushButton. The thing is my graph has two plots. One is the main one and the other is just there as a limit. I separated them with HOLD ON. All is OK, but when I hit refresh the grid disappears, if I click again it suddenly reappears. The only way that I could get it to stay is by deleting the other minor "plot". I tried putting them together in one plot but no luck. I tried placing "grid minor" everywhere but still nothing.

I used "case" structure.

Any suggestions?

My Code :

case 2
        fid = fopen('ICl.txt');
        A = textscan(fid, '%f %*f %f %*s');
        fclose(fid);
          startDate = datenum('01-01-2011')
          endDate = datenum('12-31-2011')
          xData = linspace(startDate,endDate,12);
          plot(A{1,1},A{1,2}, '--ks','LineWidth',2,...
                  'MarkerEdgeColor','k',...
                  'MarkerFaceColor','b',...
                  'MarkerSize',10);
          ylim([0 inf])
          set(gca,'YTick',[0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1])
          set(gca,'XTick',xData)
          datetick('x','mmm','keepticks')
          title('JODOV KLORID   (datum odprtja: 11.4.2010)')
          ylabel('masa[g]')
          xlabel('2011')
          grid minor;
          hold on;           
          x = 734506:1:734867;
          y = 100;           
          plot(x, y, 'rs', 'LineWidth', 3, 'MarkerSize', 1.5);

Best Answer

I may be oversimplifying it, but perhaps issue a

hold off

at the end of the code and see if this gives you behavior you desire.

grid minor is a toggle, so that if you issue it and then have a hold on, then when it is issued again, it will toggle off.

Related Solutions

MATLAB: How to set a label on the xaxis

You only have two sets of points, so this is the best I can do:

   TODAY = datenum([2012 9 21 7 0 0]);
   REST_OF_TODAY = datenum([2012 9 21 17 0 0]);
   y_max1 = max([5,10]); 
   y_min1 = min([5,10]); 
   y_max2 = max([6 11]); 
   y_min2 = min([6 11]); 
   plot(TODAY,y_max1,'-- ys','LineWidth',2,'MarkerEdgeColor','r','MarkerFaceColor','g','MarkerSize',10)       
   hold on 
  plot(TODAY,y_min1,'--ys','LineWidth',2,'MarkerEdgeColor','b','MarkerFaceColor','y','MarkerSize',10)      
  plot(REST_OF_TODAY,y_max2,'--ys','LineWidth',2,'MarkerEdgeColor','r','MarkerFaceColor','g','MarkerSize',10)      
  plot(REST_OF_TODAY,y_min2,'--ys','LineWidth',2,'MarkerEdgeColor','b','MarkerFaceColor','y','MarkerSize',10)  
  set(gca,'XTick',TODAY:REST_OF_TODAY) 
   set(gca,'XTickLabel',{'Today','Rest of today'})
   title('Wind(Knots) versus Time (dd-mmmm-yyyy)','fontsize',12,'fontweight','b')
   xlabel('Time (dd-mmmm-yyyy)','fontweight','b');
   ylabel('Wind (Knots)','fontweight','b');
   grid minor
   t0 = 1
   t1 = datenum([2012 9 21 7 0 0]) % 7 am today 
   t2 = datenum([2012 9 21 17 0 0]) % 5 pm
   x = linspace(t1,t2); % generates a row vector y of 100 points linearly spaced between and including t1 and t2.
   plot(x,sin(sqrt(x-t0)*pi)) 
  %  set(gca,'XTick',[t1,floor(t1)+0.5],'XTickLabel',{'Today','Rest of today'})
  set(gca,'XTick',[t1 t2],'XTickLabel',{'Today','Rest of today'}) 
  grid minor

Is that what you want? (I commented the line I replaced, and put the corrected line below it. I also included my earlier corrections to your code.)

MATLAB: How do i get the graph plotted

With a few changes, it works:

hold on
x=0:0.01:pi;
for k1 = 1:length(x)
    y(k1)=sin(x(k1));
end
plot(x,y)
grid on
grid minor

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