Plotting whole numbers only.

[gholladay]

I'm attempting to plot double-precision numbers and only whole numbers are
being plotted.  The plotting portion of the script is: 

hold on 
close all 
1); 
figure("visible","off"); 
subplot (2, 1, 1); 
graphics_toolkit gnuplot 
plot(IRS_Time_ms(2:end),AHRS_Scaled_Heading,"@3*",'markersize',1); 
hold on 
plot(IRS_Time_ms(2:end),IRS_Heading(2:end),"@1*",'markersize',1); 
Heading_Plot_Title = cstrcat(Test_Folder_Name, ", Heading - ",Test_Date); 
title (Heading_Plot_Title, "fontsize", 10); 
IRS_Time_sz = size(IRS_Time,1); 
set(gca,'XTick',IRS_Time_ms(2:round(IRS_Time_sz/7):IRS_Time_sz),'XTickLabel',IRS_Time(2:round(IRS_Time_sz/7):IRS_Time_sz));
 
set (gca (), 'fontsize', 8); 
xlabel("Time", 'fontsize', 8); 
ylabel("Heading (deg)", "fontsize", 8); 
legend ("AHRS","IRS"); 
grid; 

subplot (2, 1, 2); 
plot(IRS_Time_ms(2:end),Heading_Delta,"@3*",'markersize',1); 
Heading_Delta_Plot_Title = cstrcat(Test_Folder_Name, ", Heading Delta (Max:
", num2str(MaxHeading_Delta), ") - ",Test_Date); 
title (Heading_Delta_Plot_Title, "fontsize", 10); 

IRS_Time_sz = size(IRS_Time,1); 
set(gca,'XTick',IRS_Time_ms(2:round(IRS_Time_sz/7):IRS_Time_sz),'XTickLabel',IRS_Time(2:round(IRS_Time_sz/7):IRS_Time_sz));
 
set (gca (), 'fontsize', 8); 
xlabel("Time", 'fontsize', 8); 
ylabel("Heading Delta (deg)", "fontsize", 8); 
legend ("Heading Delta"); 
grid; 

saveas(1, 'Plot_Test.jpeg'); 

I've checked the Y-axis values being plotted and they are all at least 2
dicimal places, some more.

Can you tell me what is causing this problem and how to fix it? 

Greg 



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