Helping adding Tittle to Plot (multititle)

Hello,

I have a contour plot and i need a title like that for it:

"my title" variable1 variable2

My title is a character string always the same, but variable1 and variable2 change with every plot.

I have tried this:

title('my title', variable1, variable2);

But it did not work.

Error in ==> title at 55
   set(h, 'String', string, pvpairs{:});

I also want to add units to the colourbar and a legend

Thank you very much!

Answer 1

[Star Strider]

If ‘variable1’ and ‘variable2’ are strings, this works:

variable1 = 'Velocity';
variable2 = 'Position';

figure(1)
scatter(rand(10,1), rand(10,1), 'bp')
title(sprintf('“My Title“ %s %s', variable1, variable2))

[Peter]

variable1 and variable2 are numbers

[Star Strider]

In that instance, just change the format descriptor to the version and precision of your choice:

title(sprintf('“My Title“ %.3f %.3f', variable1, variable2))

See the documentation for fprintf and its friends for a full list of available format descriptors.

[Peter]

Thanks, but if i write that My Tittle appears together with variable1 and variable2 two times.

[Star Strider]

When I use single numbers for both, it works the way it should:

variable1 = pi;
variable2 = exp(1);

figure(1)
scatter(rand(10,1), rand(10,1), 'bp')
title(sprintf('“My Title” %.3f %.3f', variable1, variable2))

Are ‘variable1’ and ‘variable2’ vectors? If so, you may have to subscript them in a loop:

for k1 = 1:2
    figure(k1)
    scatter(rand(10,1), rand(10,1), 'bp')
    title(sprintf('“My Title” %.3f %.3f', variable1(k1), variable2(k1)))
end

[Peter]

No. They are numbers and "My Title" appears repeated before each variable...

I really do not understand why.

[Peter]

Your solution should work, but it does not (neither changing %f by %d)

I am trying:

title(['X 230mm ',num2str(important), num2str(Uinff)]);

but then important and Uinff (my variables) appear together!! :(

[Star Strider]

I need to see your variables and the way they are stored. Something is strange about them.

Also, your new idea will run the numbers together. You have to add a string of a few blank spaces between the numbers to separate them:

title(['X 230mm ' num2str(important) '  ' num2str(Uinff)]);

[Peter]

EUREKA

Thank you very much! That was a syntaxis problem with the blank spaces

[Star Strider]

My pleasure!

[UCRMechanicalEngineer]

Thank you, this helped me.

Answer 2

[Julian Hapke]

title(['my title' var1 var2])
depending on the variable type, you may have to convert to string and add separators like whitespace when concatenating.

[Peter]

adding separators like whitespace does not work, the variables appears together