Use Legend to show array and matrix

I have one array and one matrix like A={'x' 'y' 'z'}; B=[1 2 3]. I want to make a legend as: x=1 y=2 z=3

in my plot, could anyone help me with this issue.

Thanks

Answer 1

[Walter Roberson]

legend( arrayfun(@(K) sprintf('%s=%d',A{K}, B(K)), 1:length(A), 'UniformOutput', false) )

[Walter Roberson]

Alternately,

legend( strcat(A, '=', num2str(B(:)) ) )

[Wei]

Thanks guys! I can have one legend now... But actually I just have x=1 without other two legends. Do you know how to modify?

Thanks

[Wei]

It said: Warning: Ignoring extra legend entries.

[Walter Roberson]

You can only have one legend entry per plotted item (e.g., one per line).

How are you doing your plotting, and what are the size() of the matrices you are plotting ?

Answer 2

[Honglei Chen]

You can do this:

plot(rand(10,3))
legend(cellfun(@(x,y)sprintf('%s=%s',x,y),A,B,'UniformOutput',false))

[Wei]

Thanks for your reply. I am sorry I just modified my question and could you please take look at it again?

Thanks

[Azzi Abdelmalek]

Why have you changed your question?

[Wei]

I made some change of my code...

[Honglei Chen]

Your B now contains numbers, replace the second %s in my code to %d if they are integers

[Wei]

It always give me this: Error using cellfun Input #2 expected to be a cell array, was double instead.

[Honglei Chen]

You change the second one to a regular array, you can use Walter's code below

[Wei]

Thanks a lot! I got the legend but there is only x=1 without other two.

[Wei]

It said: Warning: Ignoring extra legend entries.