Put a cell into a title in plot

Hello,

I have a code that creates some calculations and finally exports multiple plots(images). I would like for each one plot to create a title which will contain some numbers from a file. The file I mentioned is 25x1 cell.

To sum up, I would like for each plot the title to be: plot1, plot2, ... plot25

I have tried :

suptitle('plot',cellstr(St{i}))

and

suptitle('plot',char(St{i}))

but I did not make it.

Could you help me?

[Barry]

Hi Ivan,

ST = {"Plot1", "Plot2"}
subplot(2,2,1)
plot(data.TR_GRF_EVENTS{1})
hTitle = title(ST{1})
subplot(2,2,2)
plot(data.TR_GRF_EVENTS{2})
hTitle = title(ST{2})

This code will produce something like that (Its just data i had opened) and now you can loop through it.

or you can use the sgtitle() function for an overall title.

Barry

[Ivan Mich]

You know I would like to do it without subplot. My loop that makes the plots from my code creates 50 images. So I would like to create 50 images individually, and making it via a loop

Thank you anyway

[Barry]

Could you please post your code so i can get all the insight? I think you are just using the wrong function for the title. You can just uste title(St{i}) after you plot(...).

for i=1:1:50
    plot(data(...));
    title(St{i});
end

But you don´t need the St variable you could just make it like this (When the name is always the same but only the number changes):

for i=1:1:50
    figure
    plot(...)
    title(['plot ' num2str(i)])
end
    

So the plots will be named plot 1 - 50.

[Ivan Mich]

I have this file (data.txt), accordind to this the loop created. The numbers of this file are going from 10,20,...250.

my code is:

Sr=regexp(fileread('data.txt'), '\r?\n', 'split') .';
for i=1:size(St);
    ..........
        figure
plot(x,y,'b')
title(%I don't know how to syntax here)
    
end

The point is that I want to pass the cell numbers are coming from "data.txt" to the line

[Barry]

Sr=regexp(fileread('data'), '\r?\n', 'split') .';
for i=1:size(St);
    ..........
    figure
    plot(x,y,'b')
    title(['Plot ', Sr{i}])
end

I also would use the readmatrix('data') function instead of this regexp function.

But this should do the trick. You have to use the String concat [ ... ] expression to concatenate the Plot and the number together.

[Ivan Mich]

Thank you !!!

Answer 1

[dpb]

Sr=regexp(fileread('data.txt'), '\r?\n', 'split') .';  % reads as a string, not numeric
for i=1:size(St);                                      % size() returns a 2-vector; what's St ???
    ..........

Presuming one of the St or Sr variables above is a typo,

Sr=importdata('data.txt');      % read the data as numeric, not text...
for i=1:numel(Sr)
  ..........
  figure
  plot(x,y,'b')
  title(compose('Plot: %d',Sr(i)))  % num2str or sprintf work, too...
end