Getting an error after rounding data.

I get an error saying 'Index exceeds matrix dimensions.' when I try to plot data rounded to 3 decimal places. It works fine without rounding.

filtered_hand = sprintf('%6.3f',filtered_hand) 
       plot3(handles.axes4, filtered_hand(index(j),1), filtered_hand(index(j),2), filtered_hand(index(j),3), 'o')

[Afzal]

I figured it out. I need to use num2str(data, precision) instead of sprintf. I actually wanted to do the following:

 plot3(handles.axes4, filtered_hand(index(j),1),   filtered_hand(index(j),2), filtered_hand(index(j),3), 'o')
         set(handles.text1, 'String', ['The position of target ' num2str(j) ' is x = ' num2str(filtered_hand(index(j),1),3) ' m  y = ' num2str(filtered_hand(index(j),2),3) ' m  z = ' num2str(filtered_hand(index(j),3),3) ' m '])

Answer 1

[Azzi Abdelmalek]

After

filtered_hand = sprintf('%6.3f',filtered_hand)
filtered_hand becomes a string

If you want to round to 3 decimals use

filtered_hand = round(filtered_hand*1000)/1000