How to run this code in a for loop?

1 view (last 30 days)
Hi all!
I have a code that requires to go to the folder, calls mat files and then plot images. I want to run everything in a for loop. Could you please tell me how can I do this? The individual code is like this -
%% Day 01
cd(strcat('/Users/aahmed78/PhD/Data/Day26/Two Particle'));
load('Day01_Path.mat');
Leng = numel(t);
plot(p0_x,p0_y);
for i = 1:Leng
figure(1); hold on;
title('26-April-2015 to 02-May-2015','fontsize',20);
plot(px(i,:),py(i,:),'o','MarkerSize',2,'color',[0 1 0]);
end
hold on;
%% Day 02
cd(strcat('/Users/aahmed78/PhD/Data/SWOT/Day27/Two Particle'));
load('Day02_Path.mat');
Leng = numel(t);
plot(p0_x,p0_y);
for i = 1:Leng
figure(1); hold on;
title('26-April-2015 to 02-May-2015','fontsize',20);
plot(px(i,:),py(i,:),'o','MarkerSize',2,'color',[0 1 0]);
end
hold on;
%% Day 03
cd(strcat('/Users/aahmed78/PhD/Data/SWOT/Day28/Two Particle'));
load('Day03_Path.mat');
Leng = numel(t);
plot(p0_x,p0_y);
for i = 1:Leng
figure(1); hold on;
title('26-April-2015 to 02-May-2015','fontsize',20);
plot(px(i,:),py(i,:),'o','MarkerSize',2,'color',[0 1 0]);
end
hold on;
an so on for the 7 days. Please note that the folders name are Day26, Day27, Day28, ..., Day32. But the .mat file that I call is Day01, Day02, ... ,Day07. Rest of the codes are the same. I wrote down this code to solve -
for k = 1:7
cd(strcat('/Users/aahmed78/PhD/Data/Day',num2str(day(k+26)),'/Two Particle'));
load('Day0',num2str(day),'_Path.mat');
Leng = numel(t);
plot(p0_x,p0_y); hold on;
for i = 1:Leng
figure(1); hold on;
title('26-April-2015 to 02-May-2015','fontsize',25);
plot(px(i,:),py(i,:),'o','MarkerSize',2);
hold on;
end
hold on;
end
But it is showing me
Index exceeds the number of array elements (1).
Any feedback from you guys will be much appreciated!

Accepted Answer

Raymond Norris
Raymond Norris on 15 Apr 2022
You don't provide the line number of the error. What is day? Is that they time function? Couldn't
day(k+26)
be written as just
k+26
And then
load('Day0',num2str(day),'_Path.mat');
would be
load('Day0',num2str(k),'_Path.mat');
Secondly, you ought to be able to vectorize your inner for-loop to a single call to plot. Your call to load is missing a concatenation. You left off the color for plotting px/py. Try the following
hold on
for k = 1:7
cd(strcat('/Users/aahmed78/PhD/Data/Day',num2str(k+26),'/Two Particle'))
load(['Day0',num2str(k),'_Path.mat'])
plot(p0_x,p0_y)
plot(px,py,'o','MarkerSize',2,'color',[0 1 0])
end
title('26-April-2015 to 02-May-2015','fontsize',25)
hold off
  2 Comments
Ashfaq Ahmed
Ashfaq Ahmed on 15 Apr 2022
Thank you @Raymond Norris Your method worked perfectly!!

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!