Dont know how to make a plot using for loop

so i have to create a plot that relates a set of variables against a time variable, but for that i need a for loop, because it has to go through multiple numbers, but i can code the for loop part.

[Voss]

What do you have so far?

[Mara Pereira]

[pNN50_1]=time_domain_longRR(database1{1}.RR,L); %the function time_domain_longRR takes the parameter pNN50 that I want of a long period and stores tha in shorter terms in pNN50_1;

and know is my question, because i need to use that data I gathered and plot it agains a time variable

[Voss]

Can you share the code for time_domain_longRR? Or at least describe the input and output variables' classes and sizes? Where/what is the time variable you want to plot against, and what variables to you want to plot against it?

[Soujanya Shimoga Raveendra]

Hello,

Please share any code and relevant data so we can reproduce this issue at our end.

Thanks.

Answer 1

[Benjamin Thompson]

It depends on how your time and data are stored, but you can always use the hold command to sequentially add plots in a for loop:

figure;

for (i = 1:10)

hold on;

plot(t, data(:,i));

hold off;

end

Answer 2

[Soujanya Shimoga Raveendra]

As per my understanding, you wish to plot a set of variables against time axis.

Assuming 't' contains the time data and the gathered data “pNN50_1” is a 1D array, you can directly plot as shown below:

figure 
plot(t, pNN50_1); 

If “pNN50_1” is set of variables or a 2D array you can use either of the below methods:

figure 
hold on 
for i=1:length(t) 
    plot(t,pNN50_1(:,i)); %use plot(t,pNN50_1(i,:)); if data is present in rows 
end 
hold off 

OR

figure 
plot(t,pNN50_1); %the plot contains one line for each column in " pNN50_1” 
% if data is present in rows, use plot(t,pNN50_1'); 

Refer to the below documentation for more information on “plot” function.

https://in.mathworks.com/help/matlab/ref/plot.html

Hope this helps!