How to add an index to graph title, legend, and output image without having to write everywhere the same number

12 次查看（过去 30 天）
Emerson De Souza
Emerson De Souza 2011-12-15
MOTIVATION: I want that a predefined number be used in the following:
1) generation of a graph,
2) title of the graph,
3) legend of the graph,
4) name of the output file.
EXAMPLE: If I define the index equal to 2 as written in the script below,
INDEX=2;
x = 0:pi/100:2*pi;
y = sin(x-INDEX);
h=plot(x,y);
legend(h,'sin(x-INDEX)',1)
title('TEST INDEX','FontSize',26, 'FontName','Arial', 'FontWeight','bold')
print -dtiff -f1 -r600 OUTPUT_INDEX %or -dbitmap, -djpeg, -dtiff, -depsc
I WISH: that Matlab uses that value to generate the graph (as it already does), but also writes the name everywhere with that index. Thus the expectation is the following:
2) title of the graph: TEST 2 and not TEST INDEX
3) legend of the graph: sin(x-2) and not sin(x-INDEX)
4) name of the output file: OUTPUT_2 and not OUTPUT_INDEX
I wonder if someone could help me how to write these commands correctly.
Thanks for your attention
Emerson

请先登录，再回答此问题。

采纳的回答

Fangjun Jiang
Fangjun Jiang 2011-12-15
what you need is num2str(INDEX) or sprintf()
f=figure(INDEX);
legend(h,sprintf('sin(x-%d)',INDEX),1);
title(['TEST ',num2str(INDEX));
The file name can be specified as ['OUTPUT_',num2str(INDEX)]
  3 个评论
显示 1更早的评论
Emerson De Souza
Emerson De Souza 2011-12-16
Thank you again Fangjun,
now it works well.
These command lines will
save a lot of my time.
Wish you a nice evening
Emerson

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Printing and Saving 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by