how do i change a scientific figures?

here is my plot graph from my data.

I used following code to display my data on the graph

strValues = strtrim(cellstr(num2str([X(:) Y(:)],'(%d,%d)'))); text(X,Y,strValues,'VerticalAlignment','bottom');

However, it seems the figures are printed in a long numbers..

for instance, 7.5 to be 7.50000

whereas I want it to be just 7.5

so, how do i fix this?

Cheers

Answer 1

[Mischa Kim]

YJ, how about this:

 X = '0.0000012345';
 Y = '0.0987654321';
 strValues = sprintf('(%4.1e,%4.1e)',str2num(X),str2num(Y)); 
 text(0.1,0.1,strValues,'HorizontalAlignment','left');

Simply, copy-paste-execute to see if this would do the trick. Check out the documentation for the sprintf command for formatting guidelines.