how to plot many lines on the same graph

Dear all, I have a loop that generates 30 matrices, each matrix represents some Y outputs to be plotted in a graph, how can i plot the 30 matrices on the same plot ? my code is

P_Single{K} = Values_S;
figure
plot(P_Single_9_jan{K})

but this code generates 30 graphs which i do not need. i want them all on the same graph please

[MAHMOUD ALZIOUD]

with a title please for each matrix number, from 1 to 30

Answer 1

[Krithika A]

Use the function matlab function "hold on", eg.,:

x = [1 2 3]
y = [4 6 7]
z = [7 8 9]
figure
plot(x,y)
hold on
plot(z)

For further info, see: https://uk.mathworks.com/help/matlab/ref/hold.html

[MAHMOUD ALZIOUD]

should i use the hold on function 39 times?

[Krithika A]

It might be better to do a for loop. Eg.,

for i = 1:30
    plot(x(i));
    xlabel('X axis title');
    ylabel('Y axis title');
    hold on
end
title('Title')

You'll want to change the code depending on your data structure, but this might be a start

[MAHMOUD ALZIOUD]

IT WORKED THANK YOU VERY MUCH