How can I modify the legend of my graph?

Hi ,

I have plotted some data using MATLAB. I need to plot markers for some of the values. The problem is How I can combine legend of two Plot command. This is my code.

x=[1:1:100];

y=x;

plot(y,x,y(1:10:end),x(1:10:end),'bo')

legend('Values a','Values b')

I'd like to get one legend that could be able to show me line and marker in one line.

Regards

Answer 1

[Star Strider]

I’m not certain what you’re asking.

See if adding 'Orientation','Horizontal' to your legend call does what you want:

legend('Values a','Values b', 'Orientation','horizontal');

Otherwise if you want a line joining the markers, this will do what you want:

plot(y,x,y(1:10:end),x(1:10:end),'-bo')

[Khalid Khawaja]

Hi Star, Thanks for your response. Neither I want to join markers nor I am asking about legend orientation. I need one legend for my two plot commands. I need something like this Legend (---o-- Value a) without joining markers, lines from plot command 1 and markers from command 2.

[Star Strider]

My pleasure.

That is not possible with the legend function.

You can create your own version with a two overlapping text calls. See if this does what you want:

x=[1:1:100];

y=x;

plot(y,x,y(1:10:end),x(1:10:end),'bo')

text(10, 80, 'Values a')
text(10, 80, '                 —o—', 'Color','b', 'EdgeColor','k')

[Khalid Khawaja]

It's a really good solution, but with this approach I might not be able to move the text outside the figure. In my original sub plots, I don't have enough space to add text for various lines within fig. area. any suggestions???

[Khalid Khawaja]

Thanks Star. I have found this example. http://www.mathworks.com/help/matlab/creating_plots/placing-text-outside-the-axes.html. Similar to your solution. My prob. has been solved now. Thanks for you kindness.

[Star Strider]

My pleasure.

Yours is an interesting problem, and one I’ve never before considered before you asked your Question.

[Khalid Khawaja]

I agree with you. I also searched for this problem, but couldn't get a suitable solution. Your method solves the problem to some extent. In my case, I have many graphs I am thinking of using visio now. It's a great deal of work to change settings of all graphs.

[Star Strider]

The usual way to deal with those problems is to use a handle to the original object. That won’t work here because I used two text objects. The only solution I have is to create your own function to write the two text objects, and pass the figure handle to it. It would get the necessary information from the figure handle and write the text objects correctly to it.